[7d4fbcd] | 1 | #include "owl.h" |
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| 2 | #include <stdlib.h> |
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| 3 | #include <unistd.h> |
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| 4 | #include <string.h> |
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[10b866d] | 5 | #include <ctype.h> |
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[7d4fbcd] | 6 | |
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[ebf0128] | 7 | #define VALID_EXCURSION (0x9a2b4729) |
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| 8 | |
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[a88f35a] | 9 | typedef struct _owl_editwin_excursion { /*noproto*/ |
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[ebf0128] | 10 | int valid; |
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| 11 | int index; |
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[16cfd12a] | 12 | int mark; |
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[ebf0128] | 13 | int goal_column; |
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| 14 | int lock; |
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[a88f35a] | 15 | struct _owl_editwin_excursion *next; |
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[ebf0128] | 16 | } oe_excursion; |
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| 17 | |
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[a556caa] | 18 | struct _owl_editwin { /*noproto*/ |
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[9190285] | 19 | int refcount; |
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[a556caa] | 20 | char *buff; |
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| 21 | owl_history *hist; |
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| 22 | int bufflen; |
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| 23 | int allocated; |
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| 24 | int index; |
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[16cfd12a] | 25 | int mark; |
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[a556caa] | 26 | int goal_column; |
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| 27 | int topindex; |
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[ac6d4e4] | 28 | int column; |
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[a556caa] | 29 | int winlines, wincols, fillcol, wrapcol; |
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[f6fae8d] | 30 | owl_window *win; |
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| 31 | gulong repaint_id; |
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| 32 | gulong resized_id; |
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[a556caa] | 33 | int style; |
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| 34 | int lock; |
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| 35 | int dotsend; |
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| 36 | int echochar; |
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[ebf0128] | 37 | oe_excursion *excursions; |
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[a556caa] | 38 | |
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| 39 | void (*callback)(struct _owl_editwin*); |
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[1b1cd2c] | 40 | void (*destroy_cbdata)(void *); |
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[a556caa] | 41 | void *cbdata; |
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| 42 | }; |
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| 43 | |
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[3f11c00] | 44 | static void oe_set_window(owl_editwin *e, owl_window *w, int winlines, int wincols); |
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[0b9e607] | 45 | static void oe_redraw(owl_window *win, WINDOW *curswin, void *user_data); |
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[e20d8179] | 46 | static void oe_reframe(owl_editwin *e); |
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[bab52da] | 47 | static void oe_save_excursion(owl_editwin *e, oe_excursion *x); |
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[ebf0128] | 48 | static void oe_release_excursion(owl_editwin *e, oe_excursion *x); |
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[bab52da] | 49 | static void oe_restore_excursion(owl_editwin *e, oe_excursion *x); |
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[a60edf2] | 50 | static void oe_restore_mark_only(owl_editwin *e, oe_excursion *x); |
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[ebf0128] | 51 | static int oe_char_width(gunichar c, int column); |
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[ac6d4e4] | 52 | static int oe_region_column(owl_editwin *e, int start, int end, int offset); |
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| 53 | static int oe_region_width(owl_editwin *e, int start, int end, int offset); |
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[7149832] | 54 | static int oe_find_display_line(owl_editwin *e, int *x, int index, int *hard); |
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[ebf0128] | 55 | static void oe_insert_char(owl_editwin *e, gunichar c); |
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[d625cfd] | 56 | static int owl_editwin_limit_maxcols(int width, int cols); |
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[bab52da] | 57 | static int owl_editwin_check_dotsend(owl_editwin *e); |
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[e19eb97] | 58 | static int owl_editwin_is_char_in(owl_editwin *e, const char *set); |
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[bab52da] | 59 | static gunichar owl_editwin_get_char_at_point(owl_editwin *e); |
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[e19eb97] | 60 | static int owl_editwin_replace_internal(owl_editwin *e, int replace, const char *s); |
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| 61 | static const char *oe_copy_buf(owl_editwin *e, const char *buf, int len); |
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[a60edf2] | 62 | static int oe_copy_region(owl_editwin *e); |
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[6829afc] | 63 | static CALLER_OWN char *oe_chunk(owl_editwin *e, int start, int end); |
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[1b1cd2c] | 64 | static void oe_destroy_cbdata(owl_editwin *e); |
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[f6fae8d] | 65 | static void oe_dirty(owl_editwin *e); |
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| 66 | static void oe_window_resized(owl_window *w, owl_editwin *e); |
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[bab52da] | 67 | |
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[5b5f3e6] | 68 | #define INCR 4096 |
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[7d4fbcd] | 69 | |
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[a556caa] | 70 | #define WHITESPACE " \n\t" |
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| 71 | |
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[6829afc] | 72 | static CALLER_OWN owl_editwin *owl_editwin_allocate(void) |
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[bab52da] | 73 | { |
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[96828e4] | 74 | owl_editwin *e = g_new0(owl_editwin, 1); |
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[9190285] | 75 | e->refcount = 1; |
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[8321cb7] | 76 | return e; |
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[a556caa] | 77 | } |
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| 78 | |
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[9190285] | 79 | static void _owl_editwin_delete(owl_editwin *e) |
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[6211c76] | 80 | { |
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[f6fae8d] | 81 | if (e->win) { |
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| 82 | g_signal_handler_disconnect(e->win, e->repaint_id); |
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| 83 | g_signal_handler_disconnect(e->win, e->resized_id); |
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[a8186dc] | 84 | g_object_unref(e->win); |
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[f6fae8d] | 85 | } |
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[ddbbcffa] | 86 | g_free(e->buff); |
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[6211c76] | 87 | /* just in case someone forgot to clean up */ |
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| 88 | while (e->excursions) { |
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| 89 | oe_release_excursion(e, e->excursions); |
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| 90 | } |
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[38cc669] | 91 | oe_destroy_cbdata(e); |
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[6211c76] | 92 | |
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[ddbbcffa] | 93 | g_free(e); |
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[6211c76] | 94 | } |
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| 95 | |
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[bab52da] | 96 | static inline void oe_set_index(owl_editwin *e, int index) |
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| 97 | { |
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[ebf0128] | 98 | if (index != e->index) { |
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| 99 | e->goal_column = -1; |
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[ac6d4e4] | 100 | e->column = -1; |
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[ebf0128] | 101 | } |
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[521bc84] | 102 | e->index = index; |
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[f6fae8d] | 103 | oe_dirty(e); |
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[521bc84] | 104 | } |
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| 105 | |
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[7f0c26f] | 106 | static inline void oe_set_mark(owl_editwin *e, int mark) |
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| 107 | { |
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| 108 | e->mark = mark; |
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| 109 | } |
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| 110 | |
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| 111 | void owl_editwin_set_mark(owl_editwin *e) |
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| 112 | { |
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| 113 | oe_set_mark(e, e->index); |
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| 114 | /* owl_function_makemsg("Mark set."); */ |
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| 115 | } |
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| 116 | |
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[38cc669] | 117 | static void _owl_editwin_init(owl_editwin *e, |
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| 118 | int winlines, |
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| 119 | int wincols, |
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| 120 | int style, |
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| 121 | owl_history *hist) |
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[c9334b1] | 122 | { |
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[96828e4] | 123 | e->buff=g_new(char, INCR); |
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[7d4fbcd] | 124 | e->buff[0]='\0'; |
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| 125 | e->bufflen=0; |
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[10b866d] | 126 | e->hist=hist; |
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[7d4fbcd] | 127 | e->allocated=INCR; |
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[521bc84] | 128 | oe_set_index(e, 0); |
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[7f0c26f] | 129 | oe_set_mark(e, -1); |
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[a556caa] | 130 | e->goal_column = -1; |
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[ac6d4e4] | 131 | e->column = -1; |
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[ebf0128] | 132 | e->topindex = 0; |
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| 133 | e->excursions = NULL; |
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[7d4fbcd] | 134 | e->style=style; |
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| 135 | if ((style!=OWL_EDITWIN_STYLE_MULTILINE) && |
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| 136 | (style!=OWL_EDITWIN_STYLE_ONELINE)) { |
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| 137 | e->style=OWL_EDITWIN_STYLE_MULTILINE; |
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| 138 | } |
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| 139 | e->lock=0; |
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| 140 | e->dotsend=0; |
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[c9334b1] | 141 | e->echochar='\0'; |
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[7d4fbcd] | 142 | } |
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| 143 | |
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[6829afc] | 144 | CALLER_OWN owl_editwin *owl_editwin_new(owl_window *win, int winlines, int wincols, int style, owl_history *hist) |
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[38cc669] | 145 | { |
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| 146 | owl_editwin *e = owl_editwin_allocate(); |
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| 147 | |
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[f6fae8d] | 148 | _owl_editwin_init(e, winlines, wincols, style, hist); |
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[3f11c00] | 149 | oe_set_window(e, win, winlines, wincols); |
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[38cc669] | 150 | return e; |
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| 151 | } |
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| 152 | |
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[9190285] | 153 | owl_editwin *owl_editwin_ref(owl_editwin *e) |
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| 154 | { |
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| 155 | e->refcount++; |
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| 156 | return e; |
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| 157 | } |
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| 158 | |
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| 159 | void owl_editwin_unref(owl_editwin *e) |
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| 160 | { |
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| 161 | e->refcount--; |
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| 162 | if (e->refcount <= 0) |
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| 163 | _owl_editwin_delete(e); |
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| 164 | } |
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| 165 | |
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[52172cc] | 166 | /* TODO: collapse this window into oe_window_resized. Need to stop |
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| 167 | * passing winlines and wincols to oe_set_window and get them out of |
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| 168 | * the owl_window. The tester code will first need to pass in an |
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| 169 | * owl_window headless or so. */ |
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| 170 | static void oe_set_window_size(owl_editwin *e, int winlines, int wincols) |
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[f6fae8d] | 171 | { |
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[7d4fbcd] | 172 | e->winlines=winlines; |
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| 173 | e->wincols=wincols; |
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[52172cc] | 174 | /* fillcol and wrapcol may have changed. */ |
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[9a6cc40] | 175 | e->fillcol=owl_editwin_limit_maxcols(wincols-7, owl_global_get_edit_maxfillcols(&g)); |
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[9d7a720] | 176 | if (e->style == OWL_EDITWIN_STYLE_MULTILINE) |
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| 177 | e->wrapcol=owl_editwin_limit_maxcols(wincols-7, owl_global_get_edit_maxwrapcols(&g)); |
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| 178 | else |
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| 179 | e->wrapcol = 0; |
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[52172cc] | 180 | } |
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| 181 | |
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| 182 | static void oe_window_resized(owl_window *w, owl_editwin *e) |
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| 183 | { |
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| 184 | int winlines, wincols; |
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| 185 | owl_window_get_position(w, &winlines, &wincols, NULL, NULL); |
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| 186 | oe_set_window_size(e, winlines, wincols); |
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| 187 | } |
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| 188 | |
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| 189 | static void oe_set_window(owl_editwin *e, owl_window *w, int winlines, int wincols) |
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| 190 | { |
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| 191 | e->win=w; |
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| 192 | oe_set_window_size(e, winlines, wincols); |
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[f6fae8d] | 193 | if (e->win) { |
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[a8186dc] | 194 | g_object_ref(e->win); |
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[0b9e607] | 195 | e->repaint_id = g_signal_connect(w, "redraw", G_CALLBACK(oe_redraw), e); |
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[f6fae8d] | 196 | e->resized_id = g_signal_connect(w, "resized", G_CALLBACK(oe_window_resized), e); |
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| 197 | owl_window_dirty(e->win); |
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| 198 | } |
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[7d4fbcd] | 199 | } |
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| 200 | |
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[08263a8] | 201 | owl_window *owl_editwin_get_window(owl_editwin *e) |
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| 202 | { |
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| 203 | return e->win; |
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| 204 | } |
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| 205 | |
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[c9334b1] | 206 | /* echo the character 'ch' for each normal character keystroke, |
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| 207 | * excepting locktext. This is useful for entering passwords etc. If |
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| 208 | * ch=='\0' characters are echo'd normally |
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| 209 | */ |
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| 210 | void owl_editwin_set_echochar(owl_editwin *e, int ch) |
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| 211 | { |
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| 212 | e->echochar=ch; |
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[f6fae8d] | 213 | oe_dirty(e); |
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[7d4fbcd] | 214 | } |
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| 215 | |
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[c9334b1] | 216 | owl_history *owl_editwin_get_history(owl_editwin *e) |
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| 217 | { |
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[060b3b4] | 218 | return(e->hist); |
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[10b866d] | 219 | } |
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| 220 | |
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[c9334b1] | 221 | void owl_editwin_set_dotsend(owl_editwin *e) |
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| 222 | { |
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[7d4fbcd] | 223 | e->dotsend=1; |
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| 224 | } |
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| 225 | |
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[bab52da] | 226 | void owl_editwin_set_callback(owl_editwin *e, void (*cb)(owl_editwin*)) |
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| 227 | { |
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[e74c01c] | 228 | e->callback = cb; |
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| 229 | } |
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| 230 | |
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[bab52da] | 231 | void (*owl_editwin_get_callback(owl_editwin *e))(owl_editwin*) |
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| 232 | { |
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[e74c01c] | 233 | return e->callback; |
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| 234 | } |
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| 235 | |
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[1b1cd2c] | 236 | static void oe_destroy_cbdata(owl_editwin *e) { |
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| 237 | if (e->destroy_cbdata) |
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| 238 | e->destroy_cbdata(e->cbdata); |
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| 239 | e->cbdata = NULL; |
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| 240 | e->destroy_cbdata = NULL; |
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| 241 | } |
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| 242 | |
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| 243 | void owl_editwin_set_cbdata(owl_editwin *e, void *data, void (*destroy)(void *)) |
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[bab52da] | 244 | { |
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[1b1cd2c] | 245 | oe_destroy_cbdata(e); |
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[e74c01c] | 246 | e->cbdata = data; |
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[1b1cd2c] | 247 | e->destroy_cbdata = destroy; |
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[e74c01c] | 248 | } |
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| 249 | |
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[a556caa] | 250 | void *owl_editwin_get_cbdata(owl_editwin *e) { |
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[e74c01c] | 251 | return e->cbdata; |
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| 252 | } |
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| 253 | |
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| 254 | void owl_editwin_do_callback(owl_editwin *e) { |
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| 255 | void (*cb)(owl_editwin*); |
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| 256 | cb=owl_editwin_get_callback(e); |
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| 257 | if(!cb) { |
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| 258 | owl_function_error("Internal error: No editwin callback!"); |
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| 259 | } else { |
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[af1920fd] | 260 | /* owl_function_error("text: |%s|", owl_editwin_get_text(e)); */ |
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[e74c01c] | 261 | cb(e); |
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| 262 | } |
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| 263 | } |
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| 264 | |
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[d625cfd] | 265 | static int owl_editwin_limit_maxcols(int width, int cols) |
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[c9334b1] | 266 | { |
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[d625cfd] | 267 | if (cols == 0) |
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| 268 | return width; |
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| 269 | return cols; |
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[d36f2cb] | 270 | } |
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| 271 | |
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[c9334b1] | 272 | /* set text to be 'locked in' at the beginning of the buffer, any |
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| 273 | * previous text (including locked text) will be overwritten |
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| 274 | */ |
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[e19eb97] | 275 | void owl_editwin_set_locktext(owl_editwin *e, const char *text) |
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[c9334b1] | 276 | { |
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[521bc84] | 277 | oe_set_index(e, 0); |
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[5b5f3e6] | 278 | e->lock = 0; |
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| 279 | owl_editwin_replace(e, e->bufflen, text); |
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| 280 | e->buff[e->bufflen] = 0; |
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| 281 | e->lock=e->bufflen; |
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[521bc84] | 282 | oe_set_index(e, e->lock); |
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[f6fae8d] | 283 | oe_dirty(e); |
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[7d4fbcd] | 284 | } |
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| 285 | |
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[c9334b1] | 286 | int owl_editwin_get_style(owl_editwin *e) |
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| 287 | { |
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[7d4fbcd] | 288 | return(e->style); |
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| 289 | } |
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| 290 | |
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[c9334b1] | 291 | /* clear all text except for locktext and put the cursor at the |
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| 292 | * beginning |
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| 293 | */ |
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| 294 | void owl_editwin_clear(owl_editwin *e) |
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| 295 | { |
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| 296 | |
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[6073462] | 297 | int lock = e->lock; |
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[10b866d] | 298 | int dotsend=e->dotsend; |
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[7d4fbcd] | 299 | char *locktext=NULL; |
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[cc6f009] | 300 | char echochar=e->echochar; |
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[10b866d] | 301 | |
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[6073462] | 302 | if (lock > 0) { |
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[47e0a6a] | 303 | locktext = g_strndup(e->buff, lock); |
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[7d4fbcd] | 304 | } |
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| 305 | |
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[ddbbcffa] | 306 | g_free(e->buff); |
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[f6fae8d] | 307 | _owl_editwin_init(e, e->winlines, e->wincols, e->style, e->hist); |
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[7d4fbcd] | 308 | |
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| 309 | if (lock > 0) { |
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| 310 | owl_editwin_set_locktext(e, locktext); |
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| 311 | } |
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[10b866d] | 312 | if (dotsend) { |
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| 313 | owl_editwin_set_dotsend(e); |
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| 314 | } |
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[cc6f009] | 315 | if (echochar) { |
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| 316 | owl_editwin_set_echochar(e, echochar); |
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| 317 | } |
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[7d4fbcd] | 318 | |
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[3b8a563] | 319 | g_free(locktext); |
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[6073462] | 320 | |
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[521bc84] | 321 | oe_set_index(e, lock); |
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[7d4fbcd] | 322 | } |
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| 323 | |
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[c9334b1] | 324 | void owl_editwin_recenter(owl_editwin *e) |
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| 325 | { |
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[a556caa] | 326 | e->topindex = -1; |
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[f6fae8d] | 327 | oe_dirty(e); |
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[a556caa] | 328 | } |
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[e20d8179] | 329 | |
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[a0fbdee] | 330 | static void oe_save_excursion(owl_editwin *e, oe_excursion *x) |
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| 331 | { |
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| 332 | x->index = e->index; |
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[7f0c26f] | 333 | x->mark = e->mark; |
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[a0fbdee] | 334 | x->goal_column = e->goal_column; |
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| 335 | x->lock = e->lock; |
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[ebf0128] | 336 | |
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| 337 | x->valid = VALID_EXCURSION; |
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| 338 | x->next = e->excursions; |
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| 339 | e->excursions = x; |
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| 340 | } |
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| 341 | |
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| 342 | static void oe_release_excursion(owl_editwin *e, oe_excursion *x) |
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| 343 | { |
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[a85d225] | 344 | oe_excursion **px; |
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[ebf0128] | 345 | |
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| 346 | x->valid = 0; |
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[a85d225] | 347 | for (px = &e->excursions; *px != NULL; px = &(*px)->next) |
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| 348 | if (*px == x) { |
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| 349 | *px = x->next; |
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| 350 | return; |
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| 351 | } |
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| 352 | abort(); |
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[a0fbdee] | 353 | } |
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| 354 | |
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| 355 | static void oe_restore_excursion(owl_editwin *e, oe_excursion *x) |
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| 356 | { |
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[ebf0128] | 357 | if (x->valid == VALID_EXCURSION) { |
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| 358 | oe_set_index(e, x->index); |
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| 359 | e->goal_column = x->goal_column; |
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[7f0c26f] | 360 | e->mark = x->mark; |
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[ebf0128] | 361 | e->lock = x->lock; |
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| 362 | |
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| 363 | oe_release_excursion(e, x); |
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| 364 | } |
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[a0fbdee] | 365 | } |
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| 366 | |
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[a60edf2] | 367 | static void oe_restore_mark_only(owl_editwin *e, oe_excursion *x) |
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| 368 | { |
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| 369 | if (x->valid == VALID_EXCURSION) { |
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| 370 | e->mark = x->mark; |
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| 371 | |
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| 372 | oe_release_excursion(e, x); |
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| 373 | } |
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| 374 | } |
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| 375 | |
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[a88f35a] | 376 | /* External interface to oe_save_excursion */ |
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| 377 | owl_editwin_excursion *owl_editwin_begin_excursion(owl_editwin *e) |
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| 378 | { |
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[96828e4] | 379 | owl_editwin_excursion *x = g_new(owl_editwin_excursion, 1); |
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[a88f35a] | 380 | oe_save_excursion(e, x); |
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| 381 | return x; |
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| 382 | } |
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| 383 | |
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| 384 | void owl_editwin_end_excursion(owl_editwin *e, owl_editwin_excursion *x) |
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| 385 | { |
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| 386 | oe_restore_excursion(e, x); |
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[ddbbcffa] | 387 | g_free(x); |
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[a88f35a] | 388 | } |
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| 389 | |
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[e19eb97] | 390 | static inline const char *oe_next_point(owl_editwin *e, const char *p) |
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[e20d8179] | 391 | { |
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[e19eb97] | 392 | const char *boundary = e->buff + e->bufflen + 1; |
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| 393 | const char *q; |
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[e20d8179] | 394 | |
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| 395 | q = g_utf8_find_next_char(p, boundary); |
---|
| 396 | while (q && g_unichar_ismark(g_utf8_get_char(q))) |
---|
| 397 | q = g_utf8_find_next_char(q, boundary); |
---|
| 398 | |
---|
| 399 | if (q == p) |
---|
| 400 | return NULL; |
---|
| 401 | return q; |
---|
| 402 | } |
---|
| 403 | |
---|
[e19eb97] | 404 | static inline const char *oe_prev_point(owl_editwin *e, const char *p) |
---|
[e20d8179] | 405 | { |
---|
[e19eb97] | 406 | const char *boundary = e->buff + e->lock; |
---|
[e20d8179] | 407 | |
---|
| 408 | p = g_utf8_find_prev_char(boundary, p); |
---|
| 409 | while (p && g_unichar_ismark(g_utf8_get_char(p))) |
---|
| 410 | p = g_utf8_find_prev_char(boundary, p); |
---|
| 411 | |
---|
| 412 | return p; |
---|
| 413 | } |
---|
| 414 | |
---|
[ebf0128] | 415 | static int oe_char_width(gunichar c, int column) |
---|
| 416 | { |
---|
| 417 | int cw; |
---|
| 418 | |
---|
| 419 | if (c == 9) /* TAB */ |
---|
| 420 | return TABSIZE - column % TABSIZE; |
---|
| 421 | |
---|
| 422 | cw = mk_wcwidth(c); |
---|
| 423 | |
---|
| 424 | if (cw < 0) /* control characters */ |
---|
| 425 | cw = 0; |
---|
| 426 | |
---|
| 427 | return cw; |
---|
| 428 | } |
---|
| 429 | |
---|
[e75a6df] | 430 | /* Finds the display line of 'e' starting at the character |
---|
| 431 | * 'index'. The index just after the line is returned. Whether the |
---|
| 432 | * line ends at a hard break (newline) or soft break (wrapping) is |
---|
| 433 | * returned in 'hard'. |
---|
| 434 | * |
---|
| 435 | * If the point (e->index) is contained in the line, its position is |
---|
| 436 | * returned in 'x'. |
---|
| 437 | */ |
---|
[7149832] | 438 | static int oe_find_display_line(owl_editwin *e, int *x, int index, int *hard) |
---|
[19f765d] | 439 | { |
---|
| 440 | int width = 0, cw; |
---|
[ebf0128] | 441 | gunichar c; |
---|
[e19eb97] | 442 | const char *p; |
---|
[19f765d] | 443 | |
---|
[77d4402] | 444 | while(1) { |
---|
| 445 | /* note the position of the dot */ |
---|
[2021bea] | 446 | if (x != NULL && index == e->index && width < e->wincols) |
---|
[19f765d] | 447 | *x = width; |
---|
[77d4402] | 448 | |
---|
[19f765d] | 449 | /* get the current character */ |
---|
| 450 | c = g_utf8_get_char(e->buff + index); |
---|
| 451 | |
---|
| 452 | /* figure out how wide it is */ |
---|
[ebf0128] | 453 | cw = oe_char_width(c, width); |
---|
[19f765d] | 454 | |
---|
[7ce30a9] | 455 | if (width + cw > e->wincols - 1) { |
---|
[77d4402] | 456 | if (x != NULL && *x == width) |
---|
| 457 | *x = -1; |
---|
[7149832] | 458 | if (hard != NULL) *hard = 0; |
---|
[19f765d] | 459 | break; |
---|
[77d4402] | 460 | } |
---|
[19f765d] | 461 | width += cw; |
---|
| 462 | |
---|
| 463 | if (c == '\n') { |
---|
[77d4402] | 464 | if (width < e->wincols) |
---|
| 465 | ++index; /* skip the newline */ |
---|
[7149832] | 466 | if (hard != NULL) *hard = 1; |
---|
[19f765d] | 467 | break; |
---|
| 468 | } |
---|
| 469 | |
---|
| 470 | /* find the next character */ |
---|
| 471 | p = oe_next_point(e, e->buff + index); |
---|
| 472 | if (p == NULL) { /* we ran off the end */ |
---|
| 473 | if (x != NULL && e->index > index) |
---|
| 474 | *x = width + 1; |
---|
[7149832] | 475 | if (hard != NULL) *hard = 1; |
---|
[19f765d] | 476 | break; |
---|
| 477 | } |
---|
| 478 | index = p - e->buff; |
---|
[cedc95c] | 479 | |
---|
[19f765d] | 480 | } |
---|
| 481 | return index; |
---|
| 482 | } |
---|
| 483 | |
---|
[e20d8179] | 484 | static void oe_reframe(owl_editwin *e) { |
---|
[cedc95c] | 485 | oe_excursion x; |
---|
[460fbe8] | 486 | int goal = 1 + e->winlines / 2; |
---|
[cedc95c] | 487 | int index; |
---|
| 488 | int count = 0; |
---|
| 489 | int n, i; |
---|
| 490 | int last; |
---|
| 491 | |
---|
| 492 | oe_save_excursion(e, &x); |
---|
| 493 | /* step back line-by-line through the buffer until we have >= goal lines of |
---|
| 494 | display text */ |
---|
| 495 | e->lock = 0; /* we can (must) tread on the locktext */ |
---|
| 496 | |
---|
| 497 | last = -1; |
---|
| 498 | while (count < goal) { |
---|
| 499 | index = e->index; |
---|
| 500 | owl_editwin_move_to_beginning_of_line(e); |
---|
| 501 | if (last == e->index) |
---|
| 502 | break; |
---|
| 503 | last = e->index; |
---|
| 504 | for (n = 0, i = e->index; i < index; n++) |
---|
[7149832] | 505 | i = oe_find_display_line(e, NULL, i, NULL); |
---|
[cedc95c] | 506 | count += n == 0 ? 1 : n; |
---|
| 507 | if (count < goal) |
---|
| 508 | owl_editwin_point_move(e, -1); |
---|
| 509 | } |
---|
| 510 | |
---|
| 511 | e->topindex = e->index; |
---|
[521bc84] | 512 | /* if we overshot, backtrack */ |
---|
| 513 | for (n = 0; n < (count - goal); n++) |
---|
[7149832] | 514 | e->topindex = oe_find_display_line(e, NULL, e->topindex, NULL); |
---|
[cedc95c] | 515 | |
---|
| 516 | oe_restore_excursion(e, &x); |
---|
[f6fae8d] | 517 | oe_dirty(e); |
---|
[7d4fbcd] | 518 | } |
---|
| 519 | |
---|
[f6fae8d] | 520 | static void oe_addnec(owl_editwin *e, WINDOW *curswin, int count) |
---|
[3e36085] | 521 | { |
---|
| 522 | int i; |
---|
| 523 | |
---|
| 524 | for (i = 0; i < count; i++) |
---|
[f6fae8d] | 525 | waddch(curswin, e->echochar); |
---|
[3e36085] | 526 | } |
---|
| 527 | |
---|
[f6fae8d] | 528 | static void oe_mvaddnec(owl_editwin *e, WINDOW *curswin, int y, int x, int count) |
---|
[3e36085] | 529 | { |
---|
[f6fae8d] | 530 | wmove(curswin, y, x); |
---|
| 531 | oe_addnec(e, curswin, count); |
---|
[3e36085] | 532 | } |
---|
| 533 | |
---|
[c9334b1] | 534 | /* regenerate the text on the curses window */ |
---|
[0b9e607] | 535 | static void oe_redraw(owl_window *win, WINDOW *curswin, void *user_data) |
---|
[c9334b1] | 536 | { |
---|
[7149832] | 537 | int x = -1, y = -1, t, hard; |
---|
[77d4402] | 538 | int line, index, lineindex, times = 0; |
---|
[f6fae8d] | 539 | owl_editwin *e = user_data; |
---|
[7d4fbcd] | 540 | |
---|
[bd1a1ae] | 541 | do { |
---|
[f6fae8d] | 542 | werase(curswin); |
---|
[36a16fc] | 543 | |
---|
| 544 | if (e->topindex == -1 || e->index < e->topindex) |
---|
[e20d8179] | 545 | oe_reframe(e); |
---|
| 546 | |
---|
[bd1a1ae] | 547 | line = 0; |
---|
| 548 | index = e->topindex; |
---|
| 549 | while(line < e->winlines) { |
---|
| 550 | lineindex = index; |
---|
[19f765d] | 551 | t = -1; |
---|
[7149832] | 552 | index = oe_find_display_line(e, &t, lineindex, &hard); |
---|
[19f765d] | 553 | if (x == -1 && t != -1) |
---|
| 554 | x = t, y = line; |
---|
[3e36085] | 555 | if (index - lineindex) { |
---|
| 556 | if (!e->echochar) |
---|
[f6fae8d] | 557 | mvwaddnstr(curswin, line, 0, |
---|
[3e36085] | 558 | e->buff + lineindex, |
---|
| 559 | index - lineindex); |
---|
| 560 | else { |
---|
| 561 | if(lineindex < e->lock) { |
---|
[f6fae8d] | 562 | mvwaddnstr(curswin, line, 0, |
---|
[3e36085] | 563 | e->buff + lineindex, |
---|
| 564 | MIN(index - lineindex, |
---|
| 565 | e->lock - lineindex)); |
---|
| 566 | if (e->lock < index) |
---|
[f6fae8d] | 567 | oe_addnec(e, curswin, |
---|
[3e36085] | 568 | oe_region_width(e, e->lock, index, |
---|
| 569 | oe_region_width(e, lineindex, e->lock, 0))); |
---|
| 570 | } else |
---|
[f6fae8d] | 571 | oe_mvaddnec(e, curswin, line, 0, oe_region_width(e, lineindex, index, 0)); |
---|
[3e36085] | 572 | } |
---|
[7149832] | 573 | if (!hard) |
---|
[f6fae8d] | 574 | waddch(curswin, '\\'); |
---|
[3e36085] | 575 | } |
---|
[bd1a1ae] | 576 | line++; |
---|
[a556caa] | 577 | } |
---|
[19f765d] | 578 | if (x == -1) |
---|
[bd1a1ae] | 579 | e->topindex = -1; /* force a reframe */ |
---|
[77d4402] | 580 | times++; |
---|
| 581 | } while(x == -1 && times < 3); |
---|
[e20d8179] | 582 | |
---|
[f6fae8d] | 583 | wmove(curswin, y, x); |
---|
[7d4fbcd] | 584 | } |
---|
| 585 | |
---|
[7f0c26f] | 586 | static inline void oe_fixup(int *target, int start, int end, int change) { |
---|
| 587 | if (*target > start) { |
---|
[0d9c90c] | 588 | if (*target <= end) |
---|
[8459609] | 589 | *target = end + change; |
---|
[7f0c26f] | 590 | else |
---|
| 591 | *target += change; |
---|
| 592 | } |
---|
| 593 | } |
---|
| 594 | |
---|
[e19eb97] | 595 | int owl_editwin_replace_region(owl_editwin *e, const char *s) |
---|
[a88f35a] | 596 | { |
---|
| 597 | oe_excursion x; |
---|
| 598 | int ret; |
---|
[6e58ff2] | 599 | |
---|
| 600 | if (e->mark == -1) { |
---|
| 601 | owl_function_error("The mark is unset, there is no region to replace."); |
---|
| 602 | return 0; |
---|
| 603 | } |
---|
| 604 | |
---|
[5ebc202] | 605 | oe_save_excursion(e, &x); |
---|
[a88f35a] | 606 | |
---|
| 607 | if(e->index > e->mark) { |
---|
| 608 | owl_editwin_exchange_point_and_mark(e); |
---|
| 609 | } |
---|
| 610 | |
---|
| 611 | ret = owl_editwin_replace_internal(e, e->mark - e->index, s); |
---|
| 612 | |
---|
| 613 | oe_restore_excursion(e, &x); |
---|
| 614 | |
---|
| 615 | return ret; |
---|
| 616 | } |
---|
| 617 | |
---|
[19a023f] | 618 | /* replace 'replace' characters at the point with s, returning the change in size */ |
---|
[e19eb97] | 619 | int owl_editwin_replace(owl_editwin *e, int replace, const char *s) |
---|
[ebf0128] | 620 | { |
---|
[19a023f] | 621 | int start, end, i; |
---|
[e19eb97] | 622 | const char *p; |
---|
[e9bb404] | 623 | |
---|
[5b5f3e6] | 624 | if (!g_utf8_validate(s, -1, NULL)) { |
---|
| 625 | owl_function_debugmsg("owl_editwin_insert_string: received non-utf-8 string."); |
---|
[ebf0128] | 626 | return 0; |
---|
[47519e1b] | 627 | } |
---|
| 628 | |
---|
[5b5f3e6] | 629 | start = e->index; |
---|
| 630 | for (i = 0, p = e->buff + start; i < replace && p != NULL; i++) |
---|
| 631 | p = oe_next_point(e, p); |
---|
| 632 | if (p != NULL) |
---|
| 633 | end = p - e->buff; |
---|
| 634 | else |
---|
| 635 | end = e->bufflen; |
---|
| 636 | |
---|
[19a023f] | 637 | return owl_editwin_replace_internal(e, end - start, s); |
---|
| 638 | } |
---|
| 639 | |
---|
[e19eb97] | 640 | static int owl_editwin_replace_internal(owl_editwin *e, int replace, const char *s) |
---|
[19a023f] | 641 | { |
---|
[ac6d4e4] | 642 | int start, end, free, need, size, change, oldindex; |
---|
[19a023f] | 643 | oe_excursion *x; |
---|
| 644 | |
---|
| 645 | start = e->index; |
---|
| 646 | end = start + replace; |
---|
| 647 | |
---|
[5b5f3e6] | 648 | free = e->allocated - e->bufflen + end - start; |
---|
| 649 | |
---|
| 650 | need = strlen(s) - free; |
---|
| 651 | if (need > 0) { |
---|
| 652 | size = e->allocated + need + INCR - (need % INCR); |
---|
[35b6eb9] | 653 | e->buff = g_renew(char, e->buff, size); |
---|
[5b5f3e6] | 654 | e->allocated = size; |
---|
[47519e1b] | 655 | } |
---|
[e9bb404] | 656 | |
---|
[5b5f3e6] | 657 | memmove(e->buff + start + strlen(s), e->buff + end, e->bufflen + 1 - end); |
---|
| 658 | memcpy(e->buff + start, s, strlen(s)); |
---|
[ebf0128] | 659 | change = start - end + strlen(s); |
---|
| 660 | e->bufflen += change; |
---|
[ac6d4e4] | 661 | oldindex = e->index; |
---|
[5b5f3e6] | 662 | e->index += strlen(s); |
---|
[ac6d4e4] | 663 | if (e->column != -1) |
---|
| 664 | e->column = oe_region_column(e, oldindex, e->index, e->column); |
---|
[ebf0128] | 665 | |
---|
[7f0c26f] | 666 | /* fix up the mark */ |
---|
[3e36085] | 667 | oe_fixup(&e->mark, start, end, change); |
---|
| 668 | oe_fixup(&e->topindex, start, end, change); |
---|
[ebf0128] | 669 | /* fix up any saved points after the replaced area */ |
---|
[7f0c26f] | 670 | for (x = e->excursions; x != NULL; x = x->next) { |
---|
| 671 | oe_fixup(&x->index, start, end, change); |
---|
[3e36085] | 672 | oe_fixup(&x->mark, start, end, change); |
---|
[7f0c26f] | 673 | } |
---|
[ebf0128] | 674 | |
---|
[c471e85] | 675 | /* recenter if needed */ |
---|
| 676 | if (start <= e->topindex) |
---|
| 677 | owl_editwin_recenter(e); |
---|
| 678 | |
---|
[f6fae8d] | 679 | oe_dirty(e); |
---|
| 680 | |
---|
[ebf0128] | 681 | return change; |
---|
[47519e1b] | 682 | } |
---|
| 683 | |
---|
[c9334b1] | 684 | /* linewrap the word just before the cursor. |
---|
| 685 | * returns 0 on success |
---|
| 686 | * returns -1 if we could not wrap. |
---|
| 687 | */ |
---|
[fc2677b] | 688 | static void _owl_editwin_linewrap_word(owl_editwin *e) |
---|
[c9334b1] | 689 | { |
---|
[fc2677b] | 690 | oe_excursion x; |
---|
[84027015] | 691 | gunichar c; |
---|
[7d4fbcd] | 692 | |
---|
[fc2677b] | 693 | oe_save_excursion(e, &x); |
---|
[84027015] | 694 | |
---|
[fc2677b] | 695 | while (owl_editwin_point_move(e, -1)) { |
---|
| 696 | c = owl_editwin_get_char_at_point(e); |
---|
| 697 | if (owl_util_can_break_after(c) || c == '\n') { |
---|
| 698 | if (c != '\n') |
---|
| 699 | owl_editwin_replace(e, c != ' ' ? 0 : 1, "\n"); |
---|
| 700 | break; |
---|
[2d4ff14] | 701 | } |
---|
[7d4fbcd] | 702 | } |
---|
[fc2677b] | 703 | |
---|
| 704 | oe_restore_excursion(e, &x); |
---|
[7d4fbcd] | 705 | } |
---|
| 706 | |
---|
[c9334b1] | 707 | /* delete the character at the current point, following chars |
---|
| 708 | * shift left. |
---|
[e20d8179] | 709 | */ |
---|
[c9334b1] | 710 | void owl_editwin_delete_char(owl_editwin *e) |
---|
| 711 | { |
---|
[5b5f3e6] | 712 | owl_editwin_replace(e, 1, ""); |
---|
[7d4fbcd] | 713 | } |
---|
| 714 | |
---|
[c9334b1] | 715 | /* Swap the character at point with the character at point-1 and |
---|
| 716 | * advance the pointer. If point is at beginning of buffer do |
---|
| 717 | * nothing. If point is after the last character swap point-1 with |
---|
[e20d8179] | 718 | * point-2. (Behaves as observed in tcsh and emacs). |
---|
[c9334b1] | 719 | */ |
---|
| 720 | void owl_editwin_transpose_chars(owl_editwin *e) |
---|
| 721 | { |
---|
[e19eb97] | 722 | const char *middle, *end, *start; |
---|
[65b2173] | 723 | char *tmp; |
---|
[f2e36b5] | 724 | |
---|
[47519e1b] | 725 | if (e->bufflen == 0) return; |
---|
[e20d8179] | 726 | |
---|
[5b5f3e6] | 727 | if (e->index == e->bufflen) |
---|
| 728 | owl_editwin_point_move(e, -1); /* point is after last character */ |
---|
[f2e36b5] | 729 | |
---|
[5b5f3e6] | 730 | if (owl_editwin_at_beginning_of_buffer(e)) |
---|
| 731 | return; /* point is at beginning of buffer, do nothing */ |
---|
[f2e36b5] | 732 | |
---|
[47519e1b] | 733 | /* Transpose two utf-8 unicode glyphs. */ |
---|
[5b5f3e6] | 734 | middle = e->buff + e->index; |
---|
[47519e1b] | 735 | |
---|
[5b5f3e6] | 736 | end = oe_next_point(e, middle); |
---|
| 737 | if (end == NULL) |
---|
[e20d8179] | 738 | return; |
---|
[47519e1b] | 739 | |
---|
[5b5f3e6] | 740 | start = oe_prev_point(e, middle); |
---|
| 741 | if (start == NULL) |
---|
[e20d8179] | 742 | return; |
---|
[47519e1b] | 743 | |
---|
[96828e4] | 744 | tmp = g_new(char, (end - start) + 1); |
---|
[5b5f3e6] | 745 | tmp[(end - start)] = 0; |
---|
| 746 | memcpy(tmp, middle, end - middle); |
---|
| 747 | memcpy(tmp + (end - middle), start, middle - start); |
---|
| 748 | |
---|
| 749 | owl_editwin_point_move(e, -1); |
---|
| 750 | owl_editwin_replace(e, 2, tmp); |
---|
[f2e36b5] | 751 | } |
---|
| 752 | |
---|
[c9334b1] | 753 | /* insert 'string' at the current point, later text is shifted |
---|
| 754 | * right |
---|
| 755 | */ |
---|
[e19eb97] | 756 | void owl_editwin_insert_string(owl_editwin *e, const char *s) |
---|
[c9334b1] | 757 | { |
---|
[5b5f3e6] | 758 | owl_editwin_replace(e, 0, s); |
---|
[7d4fbcd] | 759 | } |
---|
| 760 | |
---|
[a556caa] | 761 | /* We assume index is not set to point to a mid-char */ |
---|
[bab52da] | 762 | static gunichar owl_editwin_get_char_at_point(owl_editwin *e) |
---|
[c9334b1] | 763 | { |
---|
[a556caa] | 764 | return g_utf8_get_char(e->buff + e->index); |
---|
| 765 | } |
---|
[7d4fbcd] | 766 | |
---|
[7f0c26f] | 767 | void owl_editwin_exchange_point_and_mark(owl_editwin *e) { |
---|
| 768 | int tmp; |
---|
| 769 | |
---|
| 770 | if (e->mark != -1) { |
---|
| 771 | tmp = e->mark; |
---|
| 772 | owl_editwin_set_mark(e); |
---|
| 773 | oe_set_index(e, tmp); |
---|
| 774 | } |
---|
| 775 | } |
---|
| 776 | |
---|
[e20d8179] | 777 | int owl_editwin_point_move(owl_editwin *e, int delta) |
---|
[84027015] | 778 | { |
---|
[e19eb97] | 779 | const char *p; |
---|
[19f765d] | 780 | int change, d = 0; |
---|
[a556caa] | 781 | |
---|
| 782 | change = MAX(delta, - delta); |
---|
| 783 | p = e->buff + e->index; |
---|
| 784 | |
---|
| 785 | while (d < change && p != NULL) { |
---|
[e20d8179] | 786 | if (delta > 0) |
---|
| 787 | p = oe_next_point(e, p); |
---|
| 788 | else |
---|
| 789 | p = oe_prev_point(e, p); |
---|
| 790 | if (p != NULL) { |
---|
[521bc84] | 791 | oe_set_index(e, p - e->buff); |
---|
[e20d8179] | 792 | d++; |
---|
[a556caa] | 793 | } |
---|
| 794 | } |
---|
| 795 | |
---|
| 796 | return delta > 0 ? d : -d; |
---|
[84027015] | 797 | } |
---|
| 798 | |
---|
[a556caa] | 799 | int owl_editwin_at_beginning_of_buffer(owl_editwin *e) { |
---|
| 800 | if (e->index == e->lock) |
---|
| 801 | return 1; |
---|
[84027015] | 802 | |
---|
[a556caa] | 803 | return 0; |
---|
| 804 | } |
---|
| 805 | |
---|
| 806 | int owl_at_end_of_buffer(owl_editwin *e) { |
---|
| 807 | if (e->index == e->bufflen) |
---|
| 808 | return 1; |
---|
| 809 | |
---|
| 810 | return 0; |
---|
| 811 | } |
---|
| 812 | |
---|
[e9c6fc8] | 813 | static int owl_editwin_at_beginning_of_line(owl_editwin *e) |
---|
[c9334b1] | 814 | { |
---|
[a0fbdee] | 815 | oe_excursion x; |
---|
[a556caa] | 816 | int ret; |
---|
[47519e1b] | 817 | |
---|
[a556caa] | 818 | if (owl_editwin_at_beginning_of_buffer(e)) |
---|
| 819 | return 1; |
---|
[47519e1b] | 820 | |
---|
[a0fbdee] | 821 | oe_save_excursion(e, &x); |
---|
[a556caa] | 822 | owl_editwin_point_move(e, -1); |
---|
[bab52da] | 823 | ret = (owl_editwin_get_char_at_point(e) == '\n'); |
---|
[a0fbdee] | 824 | oe_restore_excursion(e, &x); |
---|
[a556caa] | 825 | |
---|
| 826 | return ret; |
---|
| 827 | } |
---|
| 828 | |
---|
[e19eb97] | 829 | static int owl_editwin_is_char_in(owl_editwin *e, const char *set) |
---|
[a556caa] | 830 | { |
---|
[e19eb97] | 831 | const char *p; |
---|
[5b5f3e6] | 832 | |
---|
| 833 | for (p = set; *p != 0; p = g_utf8_find_next_char(p, NULL)) |
---|
| 834 | if (owl_editwin_get_char_at_point(e) == g_utf8_get_char(p)) |
---|
[a556caa] | 835 | return 1; |
---|
| 836 | return 0; |
---|
| 837 | } |
---|
| 838 | |
---|
[e19eb97] | 839 | int owl_editwin_move_if_in(owl_editwin *e, int delta, const char *set) |
---|
[a556caa] | 840 | { |
---|
| 841 | int change, distance = 0; |
---|
[e20d8179] | 842 | while (owl_editwin_is_char_in(e, set)) { |
---|
[a556caa] | 843 | change = owl_editwin_point_move(e, delta); |
---|
| 844 | distance += change; |
---|
| 845 | if (change == 0) |
---|
| 846 | break; |
---|
[47519e1b] | 847 | } |
---|
[a556caa] | 848 | return distance; |
---|
| 849 | } |
---|
| 850 | |
---|
[e19eb97] | 851 | int owl_editwin_move_if_not_in(owl_editwin *e, int delta, const char *set) |
---|
[a556caa] | 852 | { |
---|
| 853 | int change, distance = 0; |
---|
[e20d8179] | 854 | while (!owl_editwin_is_char_in(e, set)) { |
---|
[a556caa] | 855 | change = owl_editwin_point_move(e, delta); |
---|
| 856 | distance += change; |
---|
| 857 | if (change == 0) |
---|
| 858 | break; |
---|
[7d4fbcd] | 859 | } |
---|
[a556caa] | 860 | return distance; |
---|
[7d4fbcd] | 861 | } |
---|
| 862 | |
---|
[e20d8179] | 863 | int owl_editwin_move_to_beginning_of_line(owl_editwin *e) |
---|
[47519e1b] | 864 | { |
---|
[a556caa] | 865 | int distance = 0; |
---|
[47519e1b] | 866 | |
---|
[a556caa] | 867 | if (!owl_editwin_at_beginning_of_line(e)) { |
---|
| 868 | /* move off the \n if were at the end of a line */ |
---|
| 869 | distance += owl_editwin_point_move(e, -1); |
---|
| 870 | distance += owl_editwin_move_if_not_in(e, -1, "\n"); |
---|
[335413f1] | 871 | /* If we stopped because we reached a '\n', rather than because we |
---|
| 872 | * hit the top of the buffer, move forward from the end of the |
---|
| 873 | * previous line to the start of the current. */ |
---|
| 874 | if (owl_editwin_get_char_at_point(e) == '\n') |
---|
[a556caa] | 875 | distance += owl_editwin_point_move(e, 1); |
---|
[47519e1b] | 876 | } |
---|
[77d4402] | 877 | e->goal_column = 0; /* subtleties */ |
---|
[84027015] | 878 | |
---|
[a556caa] | 879 | return distance; |
---|
| 880 | } |
---|
[e20d8179] | 881 | |
---|
| 882 | int owl_editwin_move_to_end_of_line(owl_editwin *e) |
---|
[a556caa] | 883 | { |
---|
| 884 | return owl_editwin_move_if_not_in(e, 1, "\n"); |
---|
[47519e1b] | 885 | } |
---|
| 886 | |
---|
[e20d8179] | 887 | int owl_editwin_line_move(owl_editwin *e, int delta) |
---|
[c9334b1] | 888 | { |
---|
[d7043b4] | 889 | int goal_column, change, ll, distance; |
---|
| 890 | int count = 0; |
---|
[a556caa] | 891 | |
---|
| 892 | change = MAX(delta, -delta); |
---|
| 893 | |
---|
[d7043b4] | 894 | goal_column = e->goal_column; |
---|
| 895 | distance = owl_editwin_move_to_beginning_of_line(e); |
---|
| 896 | goal_column = goal_column == -1 ? -distance : goal_column; |
---|
[a556caa] | 897 | |
---|
| 898 | while(count < change) { |
---|
| 899 | if (delta > 0) { |
---|
| 900 | distance += owl_editwin_move_if_not_in(e, 1, "\n"); |
---|
| 901 | distance += owl_editwin_point_move(e, 1); |
---|
| 902 | } else { |
---|
| 903 | /* I really want to assert delta < 0 here */ |
---|
| 904 | distance += owl_editwin_point_move(e, -1); /* to the newline on |
---|
| 905 | the previous line */ |
---|
| 906 | distance += owl_editwin_move_to_beginning_of_line(e); |
---|
| 907 | } |
---|
| 908 | count++; |
---|
[7d4fbcd] | 909 | } |
---|
[a556caa] | 910 | |
---|
| 911 | distance += (ll = owl_editwin_move_to_end_of_line(e)); |
---|
| 912 | if (ll > goal_column) |
---|
| 913 | distance += owl_editwin_point_move(e, goal_column - ll); |
---|
| 914 | |
---|
| 915 | e->goal_column = goal_column; |
---|
[f6fae8d] | 916 | oe_dirty(e); |
---|
[a556caa] | 917 | |
---|
| 918 | return distance; |
---|
[7d4fbcd] | 919 | } |
---|
| 920 | |
---|
[c9334b1] | 921 | void owl_editwin_backspace(owl_editwin *e) |
---|
| 922 | { |
---|
[7d4fbcd] | 923 | /* delete the char before the current one |
---|
| 924 | * and shift later chars left |
---|
| 925 | */ |
---|
[a556caa] | 926 | if(owl_editwin_point_move(e, -1)) |
---|
[7d4fbcd] | 927 | owl_editwin_delete_char(e); |
---|
| 928 | } |
---|
| 929 | |
---|
[c9334b1] | 930 | void owl_editwin_key_up(owl_editwin *e) |
---|
| 931 | { |
---|
[a556caa] | 932 | owl_editwin_line_move(e, -1); |
---|
[7d4fbcd] | 933 | } |
---|
| 934 | |
---|
[c9334b1] | 935 | void owl_editwin_key_down(owl_editwin *e) |
---|
| 936 | { |
---|
[a556caa] | 937 | owl_editwin_line_move(e, 1); |
---|
[7d4fbcd] | 938 | } |
---|
| 939 | |
---|
[c9334b1] | 940 | void owl_editwin_key_left(owl_editwin *e) |
---|
| 941 | { |
---|
[a556caa] | 942 | owl_editwin_point_move(e, -1); |
---|
[7d4fbcd] | 943 | } |
---|
| 944 | |
---|
[c9334b1] | 945 | void owl_editwin_key_right(owl_editwin *e) |
---|
| 946 | { |
---|
[a556caa] | 947 | owl_editwin_point_move(e, 1); |
---|
[7d4fbcd] | 948 | } |
---|
| 949 | |
---|
[5b5f3e6] | 950 | int owl_editwin_forward_word(owl_editwin *e) |
---|
[c9334b1] | 951 | { |
---|
[5b5f3e6] | 952 | int distance; |
---|
[7d4fbcd] | 953 | /* if we're starting on a space, find the first non-space */ |
---|
[5b5f3e6] | 954 | distance = owl_editwin_move_if_in(e, 1, WHITESPACE); |
---|
[7d4fbcd] | 955 | |
---|
[a556caa] | 956 | /* now find the end of this word */ |
---|
[5b5f3e6] | 957 | distance += owl_editwin_move_if_not_in(e, 1, WHITESPACE); |
---|
| 958 | |
---|
| 959 | return distance; |
---|
| 960 | } |
---|
| 961 | |
---|
| 962 | void owl_editwin_move_to_nextword(owl_editwin *e) |
---|
| 963 | { |
---|
| 964 | owl_editwin_forward_word(e); |
---|
[7d4fbcd] | 965 | } |
---|
| 966 | |
---|
[c9334b1] | 967 | /* go backwards to the last non-space character |
---|
| 968 | */ |
---|
[5b5f3e6] | 969 | int owl_editwin_backward_word(owl_editwin *e) |
---|
[c9334b1] | 970 | { |
---|
[a0fbdee] | 971 | oe_excursion x; |
---|
[5b5f3e6] | 972 | int distance = 0; |
---|
| 973 | int further = 0; |
---|
[a556caa] | 974 | int beginning; |
---|
| 975 | /* if in middle of word, beginning of word */ |
---|
| 976 | |
---|
| 977 | /* if at beginning of a word, find beginning of previous word */ |
---|
| 978 | |
---|
[e20d8179] | 979 | if (owl_editwin_is_char_in(e, WHITESPACE)) { |
---|
[a556caa] | 980 | /* if in whitespace past end of word, find a word , the find the beginning*/ |
---|
[5b5f3e6] | 981 | distance += owl_editwin_move_if_in(e, -1, WHITESPACE); /* leaves us on the last |
---|
| 982 | character of the word */ |
---|
[a0fbdee] | 983 | oe_save_excursion(e, &x); |
---|
[a556caa] | 984 | /* are we at the beginning of a word? */ |
---|
| 985 | owl_editwin_point_move(e, -1); |
---|
[e20d8179] | 986 | beginning = owl_editwin_is_char_in(e, WHITESPACE); |
---|
[a0fbdee] | 987 | oe_restore_excursion(e, &x); |
---|
[a556caa] | 988 | if (beginning) |
---|
[5b5f3e6] | 989 | return distance; |
---|
[a556caa] | 990 | } else { |
---|
| 991 | /* in the middle of the word; */ |
---|
[a0fbdee] | 992 | oe_save_excursion(e, &x); |
---|
[5b5f3e6] | 993 | further += owl_editwin_point_move(e, -1); |
---|
[e20d8179] | 994 | if (owl_editwin_is_char_in(e, WHITESPACE)) { /* we were at the beginning */ |
---|
[5b5f3e6] | 995 | distance += owl_editwin_backward_word(e); /* previous case */ |
---|
[8321cb7] | 996 | oe_release_excursion(e, &x); |
---|
[5b5f3e6] | 997 | return distance + further; |
---|
[a556caa] | 998 | } else { |
---|
[a0fbdee] | 999 | oe_restore_excursion(e, &x); |
---|
[7d4fbcd] | 1000 | } |
---|
| 1001 | } |
---|
[5b5f3e6] | 1002 | distance += owl_editwin_move_if_not_in(e, -1, WHITESPACE); |
---|
[a556caa] | 1003 | /* will go past */ |
---|
| 1004 | if (e->index > e->lock) |
---|
[5b5f3e6] | 1005 | distance += owl_editwin_point_move(e, 1); |
---|
| 1006 | return distance; |
---|
| 1007 | } |
---|
| 1008 | |
---|
| 1009 | void owl_editwin_move_to_previousword(owl_editwin *e) |
---|
| 1010 | { |
---|
| 1011 | owl_editwin_backward_word(e); |
---|
[7d4fbcd] | 1012 | } |
---|
| 1013 | |
---|
[c9334b1] | 1014 | void owl_editwin_delete_nextword(owl_editwin *e) |
---|
| 1015 | { |
---|
[a0fbdee] | 1016 | oe_excursion x; |
---|
[a556caa] | 1017 | |
---|
[a0fbdee] | 1018 | oe_save_excursion(e, &x); |
---|
[a60edf2] | 1019 | oe_set_mark(e, e->index); |
---|
| 1020 | owl_editwin_forward_word(e); |
---|
| 1021 | owl_editwin_kill_region(e); |
---|
| 1022 | oe_restore_mark_only(e, &x); |
---|
[7d4fbcd] | 1023 | } |
---|
| 1024 | |
---|
[c9334b1] | 1025 | void owl_editwin_delete_previousword(owl_editwin *e) |
---|
| 1026 | { |
---|
[a60edf2] | 1027 | oe_excursion x; |
---|
[b68f9cd] | 1028 | |
---|
[a60edf2] | 1029 | oe_save_excursion(e, &x); |
---|
| 1030 | oe_set_mark(e, e->index); |
---|
| 1031 | owl_editwin_backward_word(e); |
---|
| 1032 | owl_editwin_kill_region(e); |
---|
| 1033 | oe_restore_mark_only(e, &x); |
---|
[b68f9cd] | 1034 | } |
---|
| 1035 | |
---|
[a556caa] | 1036 | void owl_editwin_move_to_line_end(owl_editwin *e) |
---|
[c9334b1] | 1037 | { |
---|
[a556caa] | 1038 | owl_editwin_move_to_end_of_line(e); |
---|
[7d4fbcd] | 1039 | } |
---|
| 1040 | |
---|
[a556caa] | 1041 | void owl_editwin_delete_to_endofline(owl_editwin *e) |
---|
[c9334b1] | 1042 | { |
---|
[a0fbdee] | 1043 | oe_excursion x; |
---|
[5b5f3e6] | 1044 | int distance; |
---|
[a556caa] | 1045 | |
---|
[a0fbdee] | 1046 | oe_save_excursion(e, &x); |
---|
[a60edf2] | 1047 | owl_editwin_set_mark(e); |
---|
[5b5f3e6] | 1048 | distance = owl_editwin_move_to_end_of_line(e); |
---|
[a60edf2] | 1049 | if (distance) |
---|
| 1050 | owl_editwin_kill_region(e); |
---|
| 1051 | else |
---|
| 1052 | owl_editwin_replace(e, 1, ""); |
---|
[a0fbdee] | 1053 | oe_restore_excursion(e, &x); |
---|
[a60edf2] | 1054 | } |
---|
| 1055 | |
---|
| 1056 | void owl_editwin_yank(owl_editwin *e) |
---|
| 1057 | { |
---|
[47e0a6a] | 1058 | const char *killbuf = owl_global_get_kill_buffer(&g); |
---|
[5f8ec6b] | 1059 | |
---|
| 1060 | if (killbuf != NULL) |
---|
| 1061 | owl_editwin_replace(e, 0, killbuf); |
---|
[a60edf2] | 1062 | } |
---|
| 1063 | |
---|
[e19eb97] | 1064 | static const char *oe_copy_buf(owl_editwin *e, const char *buf, int len) |
---|
[a60edf2] | 1065 | { |
---|
[47e0a6a] | 1066 | owl_global_set_kill_buffer(&g, buf, len); |
---|
| 1067 | return owl_global_get_kill_buffer(&g); |
---|
[a60edf2] | 1068 | } |
---|
| 1069 | |
---|
| 1070 | static int oe_copy_region(owl_editwin *e) |
---|
| 1071 | { |
---|
[e19eb97] | 1072 | const char *p; |
---|
[a60edf2] | 1073 | int start, end; |
---|
| 1074 | |
---|
| 1075 | if (e->mark == -1) |
---|
| 1076 | return 0; |
---|
| 1077 | |
---|
| 1078 | start = MIN(e->index, e->mark); |
---|
| 1079 | end = MAX(e->index, e->mark); |
---|
| 1080 | |
---|
| 1081 | p = oe_copy_buf(e, e->buff + start, end - start); |
---|
| 1082 | if (p != NULL) |
---|
| 1083 | return end - start; |
---|
| 1084 | return 0; |
---|
| 1085 | } |
---|
| 1086 | |
---|
| 1087 | void owl_editwin_copy_region_as_kill(owl_editwin *e) |
---|
| 1088 | { |
---|
| 1089 | oe_copy_region(e); |
---|
| 1090 | } |
---|
| 1091 | |
---|
| 1092 | void owl_editwin_kill_region(owl_editwin *e) |
---|
| 1093 | { |
---|
| 1094 | if (e->index > e->mark) |
---|
| 1095 | owl_editwin_exchange_point_and_mark(e); |
---|
| 1096 | |
---|
[2184001] | 1097 | owl_editwin_replace_internal(e, oe_copy_region(e), ""); |
---|
[7d4fbcd] | 1098 | } |
---|
| 1099 | |
---|
[c9334b1] | 1100 | void owl_editwin_move_to_line_start(owl_editwin *e) |
---|
| 1101 | { |
---|
[a556caa] | 1102 | owl_editwin_move_to_beginning_of_line(e); |
---|
[7d4fbcd] | 1103 | } |
---|
| 1104 | |
---|
[c9334b1] | 1105 | void owl_editwin_move_to_end(owl_editwin *e) |
---|
| 1106 | { |
---|
[521bc84] | 1107 | oe_set_index(e, e->bufflen); |
---|
[7d4fbcd] | 1108 | } |
---|
| 1109 | |
---|
[c9334b1] | 1110 | void owl_editwin_move_to_top(owl_editwin *e) |
---|
| 1111 | { |
---|
[521bc84] | 1112 | oe_set_index(e, e->lock); |
---|
[7d4fbcd] | 1113 | } |
---|
| 1114 | |
---|
[2fc8397] | 1115 | void owl_editwin_backward_paragraph(owl_editwin *e) |
---|
| 1116 | { |
---|
| 1117 | owl_editwin_point_move(e, -1); |
---|
| 1118 | for (; e->index >= e->lock; owl_editwin_point_move(e, -1)) { |
---|
| 1119 | if (e->index <= e->lock || |
---|
| 1120 | ((e->buff[e->index] == '\n') && (e->buff[e->index - 1]=='\n'))) |
---|
| 1121 | break; |
---|
| 1122 | } |
---|
| 1123 | } |
---|
| 1124 | |
---|
| 1125 | void owl_editwin_forward_paragraph(owl_editwin *e) |
---|
| 1126 | { |
---|
| 1127 | owl_editwin_point_move(e, 1); |
---|
| 1128 | /* scan forward to the start of the next paragraph */ |
---|
| 1129 | for(; e->index < e->bufflen; owl_editwin_point_move(e, 1)) { |
---|
| 1130 | if (e->buff[e->index -1] == '\n' && e->buff[e->index] == '\n') |
---|
| 1131 | break; |
---|
| 1132 | } |
---|
| 1133 | } |
---|
| 1134 | |
---|
[d41294a] | 1135 | int owl_editwin_current_column(owl_editwin *e) |
---|
[c9334b1] | 1136 | { |
---|
[ac6d4e4] | 1137 | if (e->column == -1) { |
---|
| 1138 | oe_excursion x; |
---|
| 1139 | int lineindex; |
---|
[7d4fbcd] | 1140 | |
---|
[ac6d4e4] | 1141 | oe_save_excursion(e, &x); |
---|
| 1142 | owl_editwin_move_to_beginning_of_line(e); |
---|
| 1143 | lineindex = e->index; |
---|
| 1144 | oe_restore_excursion(e, &x); |
---|
| 1145 | e->column = oe_region_width(e, lineindex, e->index, 0); |
---|
| 1146 | } |
---|
| 1147 | return e->column; |
---|
[fc2677b] | 1148 | } |
---|
[a556caa] | 1149 | |
---|
[fc2677b] | 1150 | void owl_editwin_fill_paragraph(owl_editwin *e) |
---|
| 1151 | { |
---|
| 1152 | oe_excursion x; |
---|
| 1153 | gunichar ch; |
---|
| 1154 | int sentence; |
---|
[7d4fbcd] | 1155 | |
---|
[d625cfd] | 1156 | if (e->fillcol < 0) |
---|
| 1157 | /* auto-fill disabled */ |
---|
| 1158 | return; |
---|
| 1159 | |
---|
[fc2677b] | 1160 | oe_save_excursion(e, &x); |
---|
[7d4fbcd] | 1161 | |
---|
[fc2677b] | 1162 | /* Mark the end of the paragraph */ |
---|
| 1163 | owl_editwin_forward_paragraph(e); |
---|
| 1164 | /* Skip the trailing newline */ |
---|
| 1165 | owl_editwin_point_move(e, -1); |
---|
| 1166 | owl_editwin_set_mark(e); |
---|
[7d4fbcd] | 1167 | |
---|
[fc2677b] | 1168 | owl_editwin_backward_paragraph(e); |
---|
[7d4fbcd] | 1169 | |
---|
[fc2677b] | 1170 | /* Don't mess with the leading newline */ |
---|
| 1171 | if (owl_editwin_get_char_at_point(e) == '\n') |
---|
| 1172 | owl_editwin_point_move(e, 1); |
---|
[7d4fbcd] | 1173 | |
---|
[fc2677b] | 1174 | /* |
---|
| 1175 | * First pass: Scan forward replacing all series of spaces with ' ' |
---|
| 1176 | * (or nothing after CJK ideograms) |
---|
| 1177 | */ |
---|
| 1178 | sentence = 0; |
---|
| 1179 | for(;e->index < e->mark; owl_editwin_point_move(e, 1)) { |
---|
[50e671c] | 1180 | /* bail if we hit a trailing dot on the buffer */ |
---|
[fc2677b] | 1181 | if (strcmp(e->buff + e->index, "\n.") == 0) { |
---|
| 1182 | owl_editwin_set_mark(e); |
---|
[50e671c] | 1183 | break; |
---|
[7d4fbcd] | 1184 | } |
---|
| 1185 | |
---|
[fc2677b] | 1186 | ch = owl_editwin_get_char_at_point(e); |
---|
[b2c1bd4] | 1187 | |
---|
[fc2677b] | 1188 | if (owl_util_can_break_after(ch) || ch == '\n') { |
---|
| 1189 | if (g_unichar_isspace(ch)) { |
---|
| 1190 | owl_editwin_replace(e, 1, " "); |
---|
| 1191 | } |
---|
| 1192 | |
---|
[f9d257b] | 1193 | if (sentence && g_unichar_isspace(owl_editwin_get_char_at_point(e)) |
---|
| 1194 | && e->index < e->mark) |
---|
[fc2677b] | 1195 | owl_editwin_point_move(e, 1); |
---|
| 1196 | |
---|
| 1197 | while(g_unichar_isspace(owl_editwin_get_char_at_point(e)) |
---|
| 1198 | && e->index < e->mark) { |
---|
| 1199 | owl_editwin_delete_char(e); |
---|
[7d4fbcd] | 1200 | } |
---|
| 1201 | } |
---|
[fc2677b] | 1202 | |
---|
| 1203 | if(ch == '.' || ch == '!' || ch == '?') |
---|
| 1204 | sentence = 1; |
---|
| 1205 | else |
---|
| 1206 | sentence = 0; |
---|
| 1207 | } |
---|
| 1208 | |
---|
| 1209 | owl_editwin_backward_paragraph(e); |
---|
| 1210 | |
---|
| 1211 | /* Now go through inserting newlines as needed */ |
---|
| 1212 | while(e->index < e->mark) { |
---|
| 1213 | /* if we've travelled too far, linewrap */ |
---|
[d41294a] | 1214 | if (owl_editwin_current_column(e) >= e->fillcol) |
---|
[fc2677b] | 1215 | _owl_editwin_linewrap_word(e); |
---|
| 1216 | owl_editwin_point_move(e, 1); |
---|
[7d4fbcd] | 1217 | } |
---|
| 1218 | |
---|
[a0fbdee] | 1219 | oe_restore_excursion(e, &x); |
---|
[7d4fbcd] | 1220 | } |
---|
| 1221 | |
---|
[cf83b7a] | 1222 | /* returns true if only whitespace remains */ |
---|
[c9334b1] | 1223 | int owl_editwin_is_at_end(owl_editwin *e) |
---|
| 1224 | { |
---|
[a556caa] | 1225 | return (only_whitespace(e->buff + e->index)); |
---|
[217a43e] | 1226 | } |
---|
| 1227 | |
---|
[bab52da] | 1228 | static int owl_editwin_check_dotsend(owl_editwin *e) |
---|
[c9334b1] | 1229 | { |
---|
[dc7884d] | 1230 | int zdot = 0; |
---|
[72ab15f] | 1231 | oe_excursion x; |
---|
[7d4fbcd] | 1232 | |
---|
| 1233 | if (!e->dotsend) return(0); |
---|
[4ccd92c] | 1234 | if (!owl_editwin_is_at_end(e)) return (0); |
---|
[47519e1b] | 1235 | |
---|
[72ab15f] | 1236 | oe_save_excursion(e, &x); |
---|
| 1237 | |
---|
| 1238 | owl_editwin_point_move(e, -3); |
---|
| 1239 | |
---|
[4ccd92c] | 1240 | if(strncmp(e->buff + e->index, "\n.\n", 3) == 0) { |
---|
[dc7884d] | 1241 | owl_editwin_point_move(e, 1); |
---|
| 1242 | zdot = 1; |
---|
[0509efc] | 1243 | } else if(e->index == e->lock && |
---|
[4ccd92c] | 1244 | strncmp(e->buff + e->index, ".\n", 2) == 0) { |
---|
[0509efc] | 1245 | zdot = 1; |
---|
| 1246 | } |
---|
| 1247 | |
---|
| 1248 | if(zdot) { |
---|
[4ccd92c] | 1249 | owl_editwin_set_mark(e); |
---|
| 1250 | owl_editwin_move_to_end(e); |
---|
| 1251 | owl_editwin_replace_region(e, ""); |
---|
[dc7884d] | 1252 | } |
---|
[72ab15f] | 1253 | |
---|
| 1254 | oe_restore_excursion(e, &x); |
---|
| 1255 | |
---|
| 1256 | return zdot; |
---|
[7d4fbcd] | 1257 | } |
---|
| 1258 | |
---|
[fac5463] | 1259 | void owl_editwin_post_process_char(owl_editwin *e, owl_input j) |
---|
[c9334b1] | 1260 | { |
---|
[a556caa] | 1261 | /* XXX force a redisplay? */ |
---|
[fac5463] | 1262 | if ((j.ch==13 || j.ch==10) && owl_editwin_check_dotsend(e)) { |
---|
[435d6b2] | 1263 | owl_command_edit_done(e); |
---|
[7d4fbcd] | 1264 | return; |
---|
| 1265 | } |
---|
| 1266 | } |
---|
| 1267 | |
---|
[ac6d4e4] | 1268 | static int oe_region_column(owl_editwin *e, int start, int end, int offset) |
---|
| 1269 | { |
---|
| 1270 | const char *p; |
---|
| 1271 | int column = offset; |
---|
| 1272 | |
---|
| 1273 | for(p = e->buff + start; |
---|
| 1274 | p < e->buff + end; |
---|
| 1275 | p = g_utf8_find_next_char(p, NULL)) { |
---|
| 1276 | gunichar c = g_utf8_get_char(p); |
---|
| 1277 | if (c == '\n') |
---|
| 1278 | column = 0; |
---|
| 1279 | else |
---|
| 1280 | column += oe_char_width(c, column); |
---|
| 1281 | } |
---|
| 1282 | return column; |
---|
| 1283 | } |
---|
| 1284 | |
---|
[3e36085] | 1285 | static int oe_region_width(owl_editwin *e, int start, int end, int offset) |
---|
[16cfd12a] | 1286 | { |
---|
[e19eb97] | 1287 | const char *p; |
---|
[3e36085] | 1288 | int width = offset; |
---|
| 1289 | |
---|
[16cfd12a] | 1290 | for(p = e->buff + start; |
---|
| 1291 | p < e->buff + end; |
---|
| 1292 | p = g_utf8_find_next_char(p, NULL)) |
---|
| 1293 | width += oe_char_width(g_utf8_get_char(p), width); |
---|
| 1294 | |
---|
[3e36085] | 1295 | return width - offset; |
---|
[16cfd12a] | 1296 | } |
---|
| 1297 | |
---|
[ebf0128] | 1298 | static void oe_insert_char(owl_editwin *e, gunichar c) |
---|
[fac5463] | 1299 | { |
---|
[16cfd12a] | 1300 | oe_excursion x; |
---|
[5b5f3e6] | 1301 | char tmp[7]; |
---|
[16cfd12a] | 1302 | int replaced = -1; |
---|
[9c3f334] | 1303 | int column; |
---|
[5b5f3e6] | 1304 | |
---|
[ebf0128] | 1305 | if (c == '\r') /* translate CRs to NLs */ |
---|
| 1306 | c = '\n'; |
---|
| 1307 | |
---|
[16cfd12a] | 1308 | if (!g_unichar_iscntrl(c) || c == '\n' || c== '\t' ) { |
---|
[ebf0128] | 1309 | if (c == '\n' && e->style == OWL_EDITWIN_STYLE_ONELINE) { |
---|
| 1310 | return; |
---|
| 1311 | } |
---|
| 1312 | |
---|
[9c3f334] | 1313 | column = owl_editwin_current_column(e); |
---|
| 1314 | if (e->wrapcol > 0 && column != -1 && |
---|
| 1315 | column + oe_char_width(c, column) > e->wrapcol) { |
---|
[16cfd12a] | 1316 | /* XXX this is actually wrong: |
---|
| 1317 | * + If the user went back and inserted a bunch of stuff in the middle of |
---|
| 1318 | * the line, there may be more than one word past the wrap column. |
---|
| 1319 | */ |
---|
| 1320 | oe_save_excursion(e, &x); |
---|
| 1321 | |
---|
| 1322 | if (c == ' ' || c == '\t') { |
---|
| 1323 | owl_editwin_point_move(e, -1); |
---|
| 1324 | replaced = -owl_editwin_move_if_in(e, -1, " \t"); |
---|
| 1325 | if (!replaced) { |
---|
| 1326 | c = '\n'; |
---|
| 1327 | replaced = -1; |
---|
| 1328 | } |
---|
| 1329 | } else { |
---|
| 1330 | while(!owl_editwin_at_beginning_of_line(e)) { |
---|
| 1331 | owl_editwin_point_move(e, -1); |
---|
| 1332 | if (owl_util_can_break_after(owl_editwin_get_char_at_point(e))) { |
---|
| 1333 | replaced = -owl_editwin_move_if_in(e, -1, " \t"); |
---|
| 1334 | break; |
---|
| 1335 | } |
---|
| 1336 | } |
---|
| 1337 | if (owl_editwin_at_beginning_of_line(e)) |
---|
| 1338 | replaced = -1; |
---|
| 1339 | } |
---|
| 1340 | if (replaced && !owl_editwin_at_beginning_of_line(e)) |
---|
| 1341 | owl_editwin_point_move(e, 1); |
---|
| 1342 | if (replaced >= 0) { |
---|
| 1343 | owl_editwin_replace(e, replaced, "\n"); |
---|
| 1344 | } |
---|
| 1345 | oe_restore_excursion(e, &x); |
---|
| 1346 | } |
---|
| 1347 | |
---|
| 1348 | if (replaced >= 0 && (c == ' ' || c == '\t')) |
---|
| 1349 | return; /* our work here is done */ |
---|
| 1350 | |
---|
[6c171f1] | 1351 | tmp[g_unichar_to_utf8(c, tmp)] = '\0'; |
---|
[ebf0128] | 1352 | owl_editwin_replace(e, 0, tmp); |
---|
| 1353 | } |
---|
| 1354 | } |
---|
| 1355 | |
---|
| 1356 | void owl_editwin_process_char(owl_editwin *e, owl_input j) |
---|
| 1357 | { |
---|
[5b5f3e6] | 1358 | if (j.ch == ERR) |
---|
| 1359 | return; |
---|
[fac5463] | 1360 | /* Ignore ncurses control characters. */ |
---|
[e20d8179] | 1361 | if (j.ch < 0x100) { |
---|
[ebf0128] | 1362 | oe_insert_char(e, j.uch); |
---|
[fac5463] | 1363 | } |
---|
| 1364 | } |
---|
| 1365 | |
---|
[e19eb97] | 1366 | const char *owl_editwin_get_text(owl_editwin *e) |
---|
[c9334b1] | 1367 | { |
---|
[7d4fbcd] | 1368 | return(e->buff+e->lock); |
---|
| 1369 | } |
---|
| 1370 | |
---|
[6829afc] | 1371 | CALLER_OWN char *owl_editwin_get_region(owl_editwin *e) |
---|
[d41294a] | 1372 | { |
---|
| 1373 | int start, end; |
---|
| 1374 | start = e->index; |
---|
| 1375 | end = e->mark; |
---|
| 1376 | if(start > end) { |
---|
| 1377 | int tmp = end; |
---|
| 1378 | end = start; |
---|
| 1379 | start = tmp; |
---|
| 1380 | } |
---|
| 1381 | |
---|
| 1382 | return oe_chunk(e, start, end); |
---|
| 1383 | } |
---|
| 1384 | |
---|
[77f605d] | 1385 | int owl_editwin_get_echochar(owl_editwin *e) |
---|
| 1386 | { |
---|
[a556caa] | 1387 | return e->echochar; |
---|
| 1388 | } |
---|
[77f605d] | 1389 | |
---|
[6829afc] | 1390 | static CALLER_OWN char *oe_chunk(owl_editwin *e, int start, int end) |
---|
[77f605d] | 1391 | { |
---|
| 1392 | char *p; |
---|
| 1393 | |
---|
[96828e4] | 1394 | p = g_new(char, end - start + 1); |
---|
[77f605d] | 1395 | memcpy(p, e->buff + start, end - start); |
---|
| 1396 | p[end - start] = 0; |
---|
| 1397 | |
---|
| 1398 | return p; |
---|
| 1399 | } |
---|
| 1400 | |
---|
[d41294a] | 1401 | /* |
---|
| 1402 | * The only guarantee made about these values is that comparisons |
---|
| 1403 | * between them, as well as comparison between multiple calls to these |
---|
| 1404 | * functions without modifying the editwin in-between, are meaningful. |
---|
| 1405 | */ |
---|
| 1406 | |
---|
| 1407 | int owl_editwin_get_point(owl_editwin *e) |
---|
| 1408 | { |
---|
| 1409 | return e->index; |
---|
| 1410 | } |
---|
| 1411 | |
---|
| 1412 | int owl_editwin_get_mark(owl_editwin *e) |
---|
| 1413 | { |
---|
| 1414 | return e->mark; |
---|
| 1415 | } |
---|
| 1416 | |
---|
[f6fae8d] | 1417 | static void oe_dirty(owl_editwin *e) |
---|
| 1418 | { |
---|
| 1419 | if (e->win) owl_window_dirty(e->win); |
---|
| 1420 | } |
---|
| 1421 | |
---|
[2f21a41] | 1422 | |
---|
| 1423 | /* |
---|
| 1424 | * Local Variables: |
---|
| 1425 | * mode:C |
---|
| 1426 | * c-basic-offset:2 |
---|
| 1427 | * End: |
---|
| 1428 | */ |
---|