[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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[a60edf2] | 26 | char *killbuf; |
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[a556caa] | 27 | int goal_column; |
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| 28 | int topindex; |
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[ebf0128] | 29 | int cursorx; |
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[a556caa] | 30 | int winlines, wincols, fillcol, wrapcol; |
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[f6fae8d] | 31 | owl_window *win; |
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| 32 | gulong repaint_id; |
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| 33 | gulong resized_id; |
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[a556caa] | 34 | int style; |
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| 35 | int lock; |
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| 36 | int dotsend; |
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| 37 | int echochar; |
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[ebf0128] | 38 | oe_excursion *excursions; |
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[a556caa] | 39 | |
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| 40 | void (*callback)(struct _owl_editwin*); |
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[1b1cd2c] | 41 | void (*destroy_cbdata)(void *); |
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[a556caa] | 42 | void *cbdata; |
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| 43 | }; |
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| 44 | |
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[3f11c00] | 45 | static void oe_set_window(owl_editwin *e, owl_window *w, int winlines, int wincols); |
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[0b9e607] | 46 | static void oe_redraw(owl_window *win, WINDOW *curswin, void *user_data); |
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[e20d8179] | 47 | static void oe_reframe(owl_editwin *e); |
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[bab52da] | 48 | static void oe_save_excursion(owl_editwin *e, oe_excursion *x); |
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[ebf0128] | 49 | static void oe_release_excursion(owl_editwin *e, oe_excursion *x); |
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[bab52da] | 50 | static void oe_restore_excursion(owl_editwin *e, oe_excursion *x); |
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[a60edf2] | 51 | static void oe_restore_mark_only(owl_editwin *e, oe_excursion *x); |
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[ebf0128] | 52 | static int oe_char_width(gunichar c, int column); |
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[16cfd12a] | 53 | static int oe_region_width(owl_editwin *e, int start, int end, int width); |
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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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[77f605d] | 63 | static 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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[38cc669] | 72 | static owl_editwin *owl_editwin_allocate(void) |
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[bab52da] | 73 | { |
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[8321cb7] | 74 | owl_editwin *e; |
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| 75 | e = owl_malloc(sizeof(owl_editwin)); |
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| 76 | memset(e, 0, sizeof(*e)); |
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[9190285] | 77 | e->refcount = 1; |
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[8321cb7] | 78 | return e; |
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[a556caa] | 79 | } |
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| 80 | |
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[9190285] | 81 | static void _owl_editwin_delete(owl_editwin *e) |
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[6211c76] | 82 | { |
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[f6fae8d] | 83 | if (e->win) { |
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| 84 | g_signal_handler_disconnect(e->win, e->repaint_id); |
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| 85 | g_signal_handler_disconnect(e->win, e->resized_id); |
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[a8186dc] | 86 | g_object_unref(e->win); |
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[f6fae8d] | 87 | } |
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[6211c76] | 88 | owl_free(e->buff); |
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| 89 | owl_free(e->killbuf); |
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| 90 | /* just in case someone forgot to clean up */ |
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| 91 | while (e->excursions) { |
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| 92 | oe_release_excursion(e, e->excursions); |
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| 93 | } |
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[38cc669] | 94 | oe_destroy_cbdata(e); |
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[6211c76] | 95 | |
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| 96 | owl_free(e); |
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| 97 | } |
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| 98 | |
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[bab52da] | 99 | static inline void oe_set_index(owl_editwin *e, int index) |
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| 100 | { |
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[ebf0128] | 101 | if (index != e->index) { |
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| 102 | e->goal_column = -1; |
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| 103 | e->cursorx = -1; |
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| 104 | } |
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[521bc84] | 105 | e->index = index; |
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[f6fae8d] | 106 | oe_dirty(e); |
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[521bc84] | 107 | } |
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| 108 | |
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[7f0c26f] | 109 | static inline void oe_set_mark(owl_editwin *e, int mark) |
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| 110 | { |
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| 111 | e->mark = mark; |
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| 112 | } |
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| 113 | |
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| 114 | void owl_editwin_set_mark(owl_editwin *e) |
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| 115 | { |
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| 116 | oe_set_mark(e, e->index); |
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| 117 | /* owl_function_makemsg("Mark set."); */ |
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| 118 | } |
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| 119 | |
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[38cc669] | 120 | static void _owl_editwin_init(owl_editwin *e, |
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| 121 | int winlines, |
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| 122 | int wincols, |
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| 123 | int style, |
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| 124 | owl_history *hist) |
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[c9334b1] | 125 | { |
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[e20d8179] | 126 | e->buff=owl_malloc(INCR); |
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[7d4fbcd] | 127 | e->buff[0]='\0'; |
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| 128 | e->bufflen=0; |
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[10b866d] | 129 | e->hist=hist; |
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[7d4fbcd] | 130 | e->allocated=INCR; |
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[521bc84] | 131 | oe_set_index(e, 0); |
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[7f0c26f] | 132 | oe_set_mark(e, -1); |
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[a60edf2] | 133 | if (e->killbuf != NULL) |
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[27f6487] | 134 | owl_free(e->killbuf); |
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[a60edf2] | 135 | e->killbuf = NULL; |
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[a556caa] | 136 | e->goal_column = -1; |
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[ebf0128] | 137 | e->cursorx = -1; |
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| 138 | e->topindex = 0; |
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| 139 | e->excursions = NULL; |
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[7d4fbcd] | 140 | e->style=style; |
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| 141 | if ((style!=OWL_EDITWIN_STYLE_MULTILINE) && |
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| 142 | (style!=OWL_EDITWIN_STYLE_ONELINE)) { |
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| 143 | e->style=OWL_EDITWIN_STYLE_MULTILINE; |
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| 144 | } |
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| 145 | e->lock=0; |
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| 146 | e->dotsend=0; |
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[c9334b1] | 147 | e->echochar='\0'; |
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[7d4fbcd] | 148 | } |
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| 149 | |
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[f6fae8d] | 150 | owl_editwin *owl_editwin_new(owl_window *win, int winlines, int wincols, int style, owl_history *hist) |
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[38cc669] | 151 | { |
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| 152 | owl_editwin *e = owl_editwin_allocate(); |
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| 153 | |
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[f6fae8d] | 154 | _owl_editwin_init(e, winlines, wincols, style, hist); |
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[3f11c00] | 155 | oe_set_window(e, win, winlines, wincols); |
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[38cc669] | 156 | return e; |
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| 157 | } |
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| 158 | |
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[9190285] | 159 | owl_editwin *owl_editwin_ref(owl_editwin *e) |
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| 160 | { |
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| 161 | e->refcount++; |
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| 162 | return e; |
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| 163 | } |
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| 164 | |
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| 165 | void owl_editwin_unref(owl_editwin *e) |
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| 166 | { |
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| 167 | e->refcount--; |
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| 168 | if (e->refcount <= 0) |
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| 169 | _owl_editwin_delete(e); |
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| 170 | } |
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| 171 | |
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[52172cc] | 172 | /* TODO: collapse this window into oe_window_resized. Need to stop |
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| 173 | * passing winlines and wincols to oe_set_window and get them out of |
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| 174 | * the owl_window. The tester code will first need to pass in an |
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| 175 | * owl_window headless or so. */ |
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| 176 | static void oe_set_window_size(owl_editwin *e, int winlines, int wincols) |
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[f6fae8d] | 177 | { |
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[7d4fbcd] | 178 | e->winlines=winlines; |
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| 179 | e->wincols=wincols; |
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[52172cc] | 180 | /* fillcol and wrapcol may have changed. */ |
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[9a6cc40] | 181 | e->fillcol=owl_editwin_limit_maxcols(wincols-7, owl_global_get_edit_maxfillcols(&g)); |
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[9d7a720] | 182 | if (e->style == OWL_EDITWIN_STYLE_MULTILINE) |
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| 183 | e->wrapcol=owl_editwin_limit_maxcols(wincols-7, owl_global_get_edit_maxwrapcols(&g)); |
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| 184 | else |
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| 185 | e->wrapcol = 0; |
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[52172cc] | 186 | } |
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| 187 | |
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| 188 | static void oe_window_resized(owl_window *w, owl_editwin *e) |
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| 189 | { |
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| 190 | int winlines, wincols; |
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| 191 | owl_window_get_position(w, &winlines, &wincols, NULL, NULL); |
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| 192 | oe_set_window_size(e, winlines, wincols); |
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| 193 | } |
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| 194 | |
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| 195 | static void oe_set_window(owl_editwin *e, owl_window *w, int winlines, int wincols) |
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| 196 | { |
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| 197 | e->win=w; |
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| 198 | oe_set_window_size(e, winlines, wincols); |
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[f6fae8d] | 199 | if (e->win) { |
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[a8186dc] | 200 | g_object_ref(e->win); |
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[0b9e607] | 201 | e->repaint_id = g_signal_connect(w, "redraw", G_CALLBACK(oe_redraw), e); |
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[f6fae8d] | 202 | e->resized_id = g_signal_connect(w, "resized", G_CALLBACK(oe_window_resized), e); |
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| 203 | owl_window_dirty(e->win); |
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| 204 | } |
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[7d4fbcd] | 205 | } |
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| 206 | |
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[08263a8] | 207 | owl_window *owl_editwin_get_window(owl_editwin *e) |
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| 208 | { |
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| 209 | return e->win; |
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| 210 | } |
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| 211 | |
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[c9334b1] | 212 | /* echo the character 'ch' for each normal character keystroke, |
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| 213 | * excepting locktext. This is useful for entering passwords etc. If |
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| 214 | * ch=='\0' characters are echo'd normally |
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| 215 | */ |
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| 216 | void owl_editwin_set_echochar(owl_editwin *e, int ch) |
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| 217 | { |
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| 218 | e->echochar=ch; |
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[f6fae8d] | 219 | oe_dirty(e); |
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[7d4fbcd] | 220 | } |
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| 221 | |
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[c9334b1] | 222 | owl_history *owl_editwin_get_history(owl_editwin *e) |
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| 223 | { |
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[060b3b4] | 224 | return(e->hist); |
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[10b866d] | 225 | } |
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| 226 | |
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[c9334b1] | 227 | void owl_editwin_set_dotsend(owl_editwin *e) |
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| 228 | { |
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[7d4fbcd] | 229 | e->dotsend=1; |
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| 230 | } |
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| 231 | |
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[bab52da] | 232 | void owl_editwin_set_callback(owl_editwin *e, void (*cb)(owl_editwin*)) |
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| 233 | { |
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[e74c01c] | 234 | e->callback = cb; |
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| 235 | } |
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| 236 | |
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[bab52da] | 237 | void (*owl_editwin_get_callback(owl_editwin *e))(owl_editwin*) |
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| 238 | { |
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[e74c01c] | 239 | return e->callback; |
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| 240 | } |
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| 241 | |
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[1b1cd2c] | 242 | static void oe_destroy_cbdata(owl_editwin *e) { |
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| 243 | if (e->destroy_cbdata) |
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| 244 | e->destroy_cbdata(e->cbdata); |
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| 245 | e->cbdata = NULL; |
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| 246 | e->destroy_cbdata = NULL; |
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| 247 | } |
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| 248 | |
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| 249 | void owl_editwin_set_cbdata(owl_editwin *e, void *data, void (*destroy)(void *)) |
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[bab52da] | 250 | { |
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[1b1cd2c] | 251 | oe_destroy_cbdata(e); |
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[e74c01c] | 252 | e->cbdata = data; |
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[1b1cd2c] | 253 | e->destroy_cbdata = destroy; |
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[e74c01c] | 254 | } |
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| 255 | |
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[a556caa] | 256 | void *owl_editwin_get_cbdata(owl_editwin *e) { |
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[e74c01c] | 257 | return e->cbdata; |
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| 258 | } |
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| 259 | |
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| 260 | void owl_editwin_do_callback(owl_editwin *e) { |
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| 261 | void (*cb)(owl_editwin*); |
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| 262 | cb=owl_editwin_get_callback(e); |
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| 263 | if(!cb) { |
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| 264 | owl_function_error("Internal error: No editwin callback!"); |
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| 265 | } else { |
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[af1920fd] | 266 | /* owl_function_error("text: |%s|", owl_editwin_get_text(e)); */ |
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[e74c01c] | 267 | cb(e); |
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| 268 | } |
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| 269 | } |
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| 270 | |
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[d625cfd] | 271 | static int owl_editwin_limit_maxcols(int width, int cols) |
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[c9334b1] | 272 | { |
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[d625cfd] | 273 | if (cols == 0) |
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| 274 | return width; |
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| 275 | return cols; |
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[d36f2cb] | 276 | } |
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| 277 | |
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[c9334b1] | 278 | /* set text to be 'locked in' at the beginning of the buffer, any |
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| 279 | * previous text (including locked text) will be overwritten |
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| 280 | */ |
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[e19eb97] | 281 | void owl_editwin_set_locktext(owl_editwin *e, const char *text) |
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[c9334b1] | 282 | { |
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[521bc84] | 283 | oe_set_index(e, 0); |
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[5b5f3e6] | 284 | e->lock = 0; |
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| 285 | owl_editwin_replace(e, e->bufflen, text); |
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| 286 | e->buff[e->bufflen] = 0; |
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| 287 | e->lock=e->bufflen; |
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[521bc84] | 288 | oe_set_index(e, e->lock); |
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[f6fae8d] | 289 | oe_dirty(e); |
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[7d4fbcd] | 290 | } |
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| 291 | |
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[c9334b1] | 292 | int owl_editwin_get_style(owl_editwin *e) |
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| 293 | { |
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[7d4fbcd] | 294 | return(e->style); |
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| 295 | } |
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| 296 | |
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[c9334b1] | 297 | /* clear all text except for locktext and put the cursor at the |
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| 298 | * beginning |
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| 299 | */ |
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| 300 | void owl_editwin_clear(owl_editwin *e) |
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| 301 | { |
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| 302 | |
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[6073462] | 303 | int lock = e->lock; |
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[10b866d] | 304 | int dotsend=e->dotsend; |
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[7d4fbcd] | 305 | char *locktext=NULL; |
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[cc6f009] | 306 | char echochar=e->echochar; |
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[10b866d] | 307 | |
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[6073462] | 308 | if (lock > 0) { |
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[5b5f3e6] | 309 | locktext = owl_malloc(lock+1); |
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| 310 | strncpy(locktext, e->buff, lock); |
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| 311 | locktext[lock] = 0; |
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[7d4fbcd] | 312 | } |
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| 313 | |
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| 314 | owl_free(e->buff); |
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[f6fae8d] | 315 | _owl_editwin_init(e, e->winlines, e->wincols, e->style, e->hist); |
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[7d4fbcd] | 316 | |
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| 317 | if (lock > 0) { |
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| 318 | owl_editwin_set_locktext(e, locktext); |
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| 319 | } |
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[10b866d] | 320 | if (dotsend) { |
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| 321 | owl_editwin_set_dotsend(e); |
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| 322 | } |
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[cc6f009] | 323 | if (echochar) { |
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| 324 | owl_editwin_set_echochar(e, echochar); |
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| 325 | } |
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[7d4fbcd] | 326 | |
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[5b5f3e6] | 327 | if (locktext) |
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| 328 | owl_free(locktext); |
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[6073462] | 329 | |
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[521bc84] | 330 | oe_set_index(e, lock); |
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[7d4fbcd] | 331 | } |
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| 332 | |
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[c9334b1] | 333 | void owl_editwin_recenter(owl_editwin *e) |
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| 334 | { |
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[a556caa] | 335 | e->topindex = -1; |
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[f6fae8d] | 336 | oe_dirty(e); |
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[a556caa] | 337 | } |
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[e20d8179] | 338 | |
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[a0fbdee] | 339 | static void oe_save_excursion(owl_editwin *e, oe_excursion *x) |
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| 340 | { |
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| 341 | x->index = e->index; |
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[7f0c26f] | 342 | x->mark = e->mark; |
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[a0fbdee] | 343 | x->goal_column = e->goal_column; |
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| 344 | x->lock = e->lock; |
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[ebf0128] | 345 | |
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| 346 | x->valid = VALID_EXCURSION; |
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| 347 | x->next = e->excursions; |
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| 348 | e->excursions = x; |
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| 349 | } |
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| 350 | |
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| 351 | static void oe_release_excursion(owl_editwin *e, oe_excursion *x) |
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| 352 | { |
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[a85d225] | 353 | oe_excursion **px; |
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[ebf0128] | 354 | |
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| 355 | x->valid = 0; |
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[a85d225] | 356 | for (px = &e->excursions; *px != NULL; px = &(*px)->next) |
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| 357 | if (*px == x) { |
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| 358 | *px = x->next; |
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| 359 | return; |
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| 360 | } |
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| 361 | abort(); |
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[a0fbdee] | 362 | } |
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| 363 | |
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| 364 | static void oe_restore_excursion(owl_editwin *e, oe_excursion *x) |
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| 365 | { |
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[ebf0128] | 366 | if (x->valid == VALID_EXCURSION) { |
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| 367 | oe_set_index(e, x->index); |
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| 368 | e->goal_column = x->goal_column; |
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[7f0c26f] | 369 | e->mark = x->mark; |
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[ebf0128] | 370 | e->lock = x->lock; |
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| 371 | |
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| 372 | oe_release_excursion(e, x); |
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| 373 | } |
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[a0fbdee] | 374 | } |
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| 375 | |
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[a60edf2] | 376 | static void oe_restore_mark_only(owl_editwin *e, oe_excursion *x) |
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| 377 | { |
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| 378 | if (x->valid == VALID_EXCURSION) { |
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| 379 | e->mark = x->mark; |
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| 380 | |
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| 381 | oe_release_excursion(e, x); |
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| 382 | } |
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| 383 | } |
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| 384 | |
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[a88f35a] | 385 | /* External interface to oe_save_excursion */ |
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| 386 | owl_editwin_excursion *owl_editwin_begin_excursion(owl_editwin *e) |
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| 387 | { |
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| 388 | owl_editwin_excursion *x = owl_malloc(sizeof *x); |
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| 389 | oe_save_excursion(e, x); |
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| 390 | return x; |
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| 391 | } |
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| 392 | |
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| 393 | void owl_editwin_end_excursion(owl_editwin *e, owl_editwin_excursion *x) |
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| 394 | { |
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| 395 | oe_restore_excursion(e, x); |
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| 396 | owl_free(x); |
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| 397 | } |
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| 398 | |
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[e19eb97] | 399 | static inline const char *oe_next_point(owl_editwin *e, const char *p) |
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[e20d8179] | 400 | { |
---|
[e19eb97] | 401 | const char *boundary = e->buff + e->bufflen + 1; |
---|
| 402 | const char *q; |
---|
[e20d8179] | 403 | |
---|
| 404 | q = g_utf8_find_next_char(p, boundary); |
---|
| 405 | while (q && g_unichar_ismark(g_utf8_get_char(q))) |
---|
| 406 | q = g_utf8_find_next_char(q, boundary); |
---|
| 407 | |
---|
| 408 | if (q == p) |
---|
| 409 | return NULL; |
---|
| 410 | return q; |
---|
| 411 | } |
---|
| 412 | |
---|
[e19eb97] | 413 | static inline const char *oe_prev_point(owl_editwin *e, const char *p) |
---|
[e20d8179] | 414 | { |
---|
[e19eb97] | 415 | const char *boundary = e->buff + e->lock; |
---|
[e20d8179] | 416 | |
---|
| 417 | p = g_utf8_find_prev_char(boundary, p); |
---|
| 418 | while (p && g_unichar_ismark(g_utf8_get_char(p))) |
---|
| 419 | p = g_utf8_find_prev_char(boundary, p); |
---|
| 420 | |
---|
| 421 | return p; |
---|
| 422 | } |
---|
| 423 | |
---|
[ebf0128] | 424 | static int oe_char_width(gunichar c, int column) |
---|
| 425 | { |
---|
| 426 | int cw; |
---|
| 427 | |
---|
| 428 | if (c == 9) /* TAB */ |
---|
| 429 | return TABSIZE - column % TABSIZE; |
---|
| 430 | |
---|
| 431 | cw = mk_wcwidth(c); |
---|
| 432 | |
---|
| 433 | if (cw < 0) /* control characters */ |
---|
| 434 | cw = 0; |
---|
| 435 | |
---|
| 436 | return cw; |
---|
| 437 | } |
---|
| 438 | |
---|
[e75a6df] | 439 | /* Finds the display line of 'e' starting at the character |
---|
| 440 | * 'index'. The index just after the line is returned. Whether the |
---|
| 441 | * line ends at a hard break (newline) or soft break (wrapping) is |
---|
| 442 | * returned in 'hard'. |
---|
| 443 | * |
---|
| 444 | * If the point (e->index) is contained in the line, its position is |
---|
| 445 | * returned in 'x'. |
---|
| 446 | */ |
---|
[7149832] | 447 | static int oe_find_display_line(owl_editwin *e, int *x, int index, int *hard) |
---|
[19f765d] | 448 | { |
---|
| 449 | int width = 0, cw; |
---|
[ebf0128] | 450 | gunichar c; |
---|
[e19eb97] | 451 | const char *p; |
---|
[19f765d] | 452 | |
---|
[77d4402] | 453 | while(1) { |
---|
| 454 | /* note the position of the dot */ |
---|
[2021bea] | 455 | if (x != NULL && index == e->index && width < e->wincols) |
---|
[19f765d] | 456 | *x = width; |
---|
[77d4402] | 457 | |
---|
[19f765d] | 458 | /* get the current character */ |
---|
| 459 | c = g_utf8_get_char(e->buff + index); |
---|
| 460 | |
---|
| 461 | /* figure out how wide it is */ |
---|
[ebf0128] | 462 | cw = oe_char_width(c, width); |
---|
[19f765d] | 463 | |
---|
[7ce30a9] | 464 | if (width + cw > e->wincols - 1) { |
---|
[77d4402] | 465 | if (x != NULL && *x == width) |
---|
| 466 | *x = -1; |
---|
[7149832] | 467 | if (hard != NULL) *hard = 0; |
---|
[19f765d] | 468 | break; |
---|
[77d4402] | 469 | } |
---|
[19f765d] | 470 | width += cw; |
---|
| 471 | |
---|
| 472 | if (c == '\n') { |
---|
[77d4402] | 473 | if (width < e->wincols) |
---|
| 474 | ++index; /* skip the newline */ |
---|
[7149832] | 475 | if (hard != NULL) *hard = 1; |
---|
[19f765d] | 476 | break; |
---|
| 477 | } |
---|
| 478 | |
---|
| 479 | /* find the next character */ |
---|
| 480 | p = oe_next_point(e, e->buff + index); |
---|
| 481 | if (p == NULL) { /* we ran off the end */ |
---|
| 482 | if (x != NULL && e->index > index) |
---|
| 483 | *x = width + 1; |
---|
[7149832] | 484 | if (hard != NULL) *hard = 1; |
---|
[19f765d] | 485 | break; |
---|
| 486 | } |
---|
| 487 | index = p - e->buff; |
---|
[cedc95c] | 488 | |
---|
[19f765d] | 489 | } |
---|
| 490 | return index; |
---|
| 491 | } |
---|
| 492 | |
---|
[e20d8179] | 493 | static void oe_reframe(owl_editwin *e) { |
---|
[cedc95c] | 494 | oe_excursion x; |
---|
[460fbe8] | 495 | int goal = 1 + e->winlines / 2; |
---|
[cedc95c] | 496 | int index; |
---|
| 497 | int count = 0; |
---|
| 498 | int n, i; |
---|
| 499 | int last; |
---|
| 500 | |
---|
| 501 | oe_save_excursion(e, &x); |
---|
| 502 | /* step back line-by-line through the buffer until we have >= goal lines of |
---|
| 503 | display text */ |
---|
| 504 | e->lock = 0; /* we can (must) tread on the locktext */ |
---|
| 505 | |
---|
| 506 | last = -1; |
---|
| 507 | while (count < goal) { |
---|
| 508 | index = e->index; |
---|
| 509 | owl_editwin_move_to_beginning_of_line(e); |
---|
| 510 | if (last == e->index) |
---|
| 511 | break; |
---|
| 512 | last = e->index; |
---|
| 513 | for (n = 0, i = e->index; i < index; n++) |
---|
[7149832] | 514 | i = oe_find_display_line(e, NULL, i, NULL); |
---|
[cedc95c] | 515 | count += n == 0 ? 1 : n; |
---|
| 516 | if (count < goal) |
---|
| 517 | owl_editwin_point_move(e, -1); |
---|
| 518 | } |
---|
| 519 | |
---|
| 520 | e->topindex = e->index; |
---|
[521bc84] | 521 | /* if we overshot, backtrack */ |
---|
| 522 | for (n = 0; n < (count - goal); n++) |
---|
[7149832] | 523 | e->topindex = oe_find_display_line(e, NULL, e->topindex, NULL); |
---|
[cedc95c] | 524 | |
---|
| 525 | oe_restore_excursion(e, &x); |
---|
[f6fae8d] | 526 | oe_dirty(e); |
---|
[7d4fbcd] | 527 | } |
---|
| 528 | |
---|
[f6fae8d] | 529 | static void oe_addnec(owl_editwin *e, WINDOW *curswin, int count) |
---|
[3e36085] | 530 | { |
---|
| 531 | int i; |
---|
| 532 | |
---|
| 533 | for (i = 0; i < count; i++) |
---|
[f6fae8d] | 534 | waddch(curswin, e->echochar); |
---|
[3e36085] | 535 | } |
---|
| 536 | |
---|
[f6fae8d] | 537 | static void oe_mvaddnec(owl_editwin *e, WINDOW *curswin, int y, int x, int count) |
---|
[3e36085] | 538 | { |
---|
[f6fae8d] | 539 | wmove(curswin, y, x); |
---|
| 540 | oe_addnec(e, curswin, count); |
---|
[3e36085] | 541 | } |
---|
| 542 | |
---|
[c9334b1] | 543 | /* regenerate the text on the curses window */ |
---|
[0b9e607] | 544 | static void oe_redraw(owl_window *win, WINDOW *curswin, void *user_data) |
---|
[c9334b1] | 545 | { |
---|
[7149832] | 546 | int x = -1, y = -1, t, hard; |
---|
[77d4402] | 547 | int line, index, lineindex, times = 0; |
---|
[f6fae8d] | 548 | owl_editwin *e = user_data; |
---|
[7d4fbcd] | 549 | |
---|
[bd1a1ae] | 550 | do { |
---|
[f6fae8d] | 551 | werase(curswin); |
---|
[36a16fc] | 552 | |
---|
| 553 | if (e->topindex == -1 || e->index < e->topindex) |
---|
[e20d8179] | 554 | oe_reframe(e); |
---|
| 555 | |
---|
[bd1a1ae] | 556 | line = 0; |
---|
| 557 | index = e->topindex; |
---|
| 558 | while(line < e->winlines) { |
---|
| 559 | lineindex = index; |
---|
[19f765d] | 560 | t = -1; |
---|
[7149832] | 561 | index = oe_find_display_line(e, &t, lineindex, &hard); |
---|
[19f765d] | 562 | if (x == -1 && t != -1) |
---|
| 563 | x = t, y = line; |
---|
[3e36085] | 564 | if (index - lineindex) { |
---|
| 565 | if (!e->echochar) |
---|
[f6fae8d] | 566 | mvwaddnstr(curswin, line, 0, |
---|
[3e36085] | 567 | e->buff + lineindex, |
---|
| 568 | index - lineindex); |
---|
| 569 | else { |
---|
| 570 | if(lineindex < e->lock) { |
---|
[f6fae8d] | 571 | mvwaddnstr(curswin, line, 0, |
---|
[3e36085] | 572 | e->buff + lineindex, |
---|
| 573 | MIN(index - lineindex, |
---|
| 574 | e->lock - lineindex)); |
---|
| 575 | if (e->lock < index) |
---|
[f6fae8d] | 576 | oe_addnec(e, curswin, |
---|
[3e36085] | 577 | oe_region_width(e, e->lock, index, |
---|
| 578 | oe_region_width(e, lineindex, e->lock, 0))); |
---|
| 579 | } else |
---|
[f6fae8d] | 580 | oe_mvaddnec(e, curswin, line, 0, oe_region_width(e, lineindex, index, 0)); |
---|
[3e36085] | 581 | } |
---|
[7149832] | 582 | if (!hard) |
---|
[f6fae8d] | 583 | waddch(curswin, '\\'); |
---|
[3e36085] | 584 | } |
---|
[bd1a1ae] | 585 | line++; |
---|
[a556caa] | 586 | } |
---|
[19f765d] | 587 | if (x == -1) |
---|
[bd1a1ae] | 588 | e->topindex = -1; /* force a reframe */ |
---|
[77d4402] | 589 | times++; |
---|
| 590 | } while(x == -1 && times < 3); |
---|
[e20d8179] | 591 | |
---|
[f6fae8d] | 592 | wmove(curswin, y, x); |
---|
[ebf0128] | 593 | e->cursorx = x; |
---|
[7d4fbcd] | 594 | } |
---|
| 595 | |
---|
[7f0c26f] | 596 | static inline void oe_fixup(int *target, int start, int end, int change) { |
---|
| 597 | if (*target > start) { |
---|
[0d9c90c] | 598 | if (*target <= end) |
---|
[8459609] | 599 | *target = end + change; |
---|
[7f0c26f] | 600 | else |
---|
| 601 | *target += change; |
---|
| 602 | } |
---|
| 603 | } |
---|
| 604 | |
---|
[e19eb97] | 605 | int owl_editwin_replace_region(owl_editwin *e, const char *s) |
---|
[a88f35a] | 606 | { |
---|
| 607 | oe_excursion x; |
---|
| 608 | int ret; |
---|
[6e58ff2] | 609 | |
---|
| 610 | if (e->mark == -1) { |
---|
| 611 | owl_function_error("The mark is unset, there is no region to replace."); |
---|
| 612 | return 0; |
---|
| 613 | } |
---|
| 614 | |
---|
[5ebc202] | 615 | oe_save_excursion(e, &x); |
---|
[a88f35a] | 616 | |
---|
| 617 | if(e->index > e->mark) { |
---|
| 618 | owl_editwin_exchange_point_and_mark(e); |
---|
| 619 | } |
---|
| 620 | |
---|
| 621 | ret = owl_editwin_replace_internal(e, e->mark - e->index, s); |
---|
| 622 | |
---|
| 623 | oe_restore_excursion(e, &x); |
---|
| 624 | |
---|
| 625 | return ret; |
---|
| 626 | } |
---|
| 627 | |
---|
[19a023f] | 628 | /* replace 'replace' characters at the point with s, returning the change in size */ |
---|
[e19eb97] | 629 | int owl_editwin_replace(owl_editwin *e, int replace, const char *s) |
---|
[ebf0128] | 630 | { |
---|
[19a023f] | 631 | int start, end, i; |
---|
[e19eb97] | 632 | const char *p; |
---|
[e9bb404] | 633 | |
---|
[5b5f3e6] | 634 | if (!g_utf8_validate(s, -1, NULL)) { |
---|
| 635 | owl_function_debugmsg("owl_editwin_insert_string: received non-utf-8 string."); |
---|
[ebf0128] | 636 | return 0; |
---|
[47519e1b] | 637 | } |
---|
| 638 | |
---|
[5b5f3e6] | 639 | start = e->index; |
---|
| 640 | for (i = 0, p = e->buff + start; i < replace && p != NULL; i++) |
---|
| 641 | p = oe_next_point(e, p); |
---|
| 642 | if (p != NULL) |
---|
| 643 | end = p - e->buff; |
---|
| 644 | else |
---|
| 645 | end = e->bufflen; |
---|
| 646 | |
---|
[19a023f] | 647 | return owl_editwin_replace_internal(e, end - start, s); |
---|
| 648 | } |
---|
| 649 | |
---|
[e19eb97] | 650 | static int owl_editwin_replace_internal(owl_editwin *e, int replace, const char *s) |
---|
[19a023f] | 651 | { |
---|
| 652 | int start, end, free, need, size, change; |
---|
| 653 | oe_excursion *x; |
---|
| 654 | |
---|
| 655 | start = e->index; |
---|
| 656 | end = start + replace; |
---|
| 657 | |
---|
[5b5f3e6] | 658 | free = e->allocated - e->bufflen + end - start; |
---|
| 659 | |
---|
| 660 | need = strlen(s) - free; |
---|
| 661 | if (need > 0) { |
---|
| 662 | size = e->allocated + need + INCR - (need % INCR); |
---|
[b644688] | 663 | e->buff = owl_realloc(e->buff, size); |
---|
[5b5f3e6] | 664 | e->allocated = size; |
---|
[47519e1b] | 665 | } |
---|
[e9bb404] | 666 | |
---|
[5b5f3e6] | 667 | memmove(e->buff + start + strlen(s), e->buff + end, e->bufflen + 1 - end); |
---|
| 668 | memcpy(e->buff + start, s, strlen(s)); |
---|
[ebf0128] | 669 | change = start - end + strlen(s); |
---|
| 670 | e->bufflen += change; |
---|
[5b5f3e6] | 671 | e->index += strlen(s); |
---|
[ebf0128] | 672 | |
---|
[7f0c26f] | 673 | /* fix up the mark */ |
---|
[3e36085] | 674 | oe_fixup(&e->mark, start, end, change); |
---|
| 675 | oe_fixup(&e->topindex, start, end, change); |
---|
[ebf0128] | 676 | /* fix up any saved points after the replaced area */ |
---|
[7f0c26f] | 677 | for (x = e->excursions; x != NULL; x = x->next) { |
---|
| 678 | oe_fixup(&x->index, start, end, change); |
---|
[3e36085] | 679 | oe_fixup(&x->mark, start, end, change); |
---|
[7f0c26f] | 680 | } |
---|
[ebf0128] | 681 | |
---|
[c471e85] | 682 | /* recenter if needed */ |
---|
| 683 | if (start <= e->topindex) |
---|
| 684 | owl_editwin_recenter(e); |
---|
| 685 | |
---|
[f6fae8d] | 686 | oe_dirty(e); |
---|
| 687 | |
---|
[ebf0128] | 688 | return change; |
---|
[47519e1b] | 689 | } |
---|
| 690 | |
---|
[c9334b1] | 691 | /* linewrap the word just before the cursor. |
---|
| 692 | * returns 0 on success |
---|
| 693 | * returns -1 if we could not wrap. |
---|
| 694 | */ |
---|
[fc2677b] | 695 | static void _owl_editwin_linewrap_word(owl_editwin *e) |
---|
[c9334b1] | 696 | { |
---|
[fc2677b] | 697 | oe_excursion x; |
---|
[84027015] | 698 | gunichar c; |
---|
[7d4fbcd] | 699 | |
---|
[fc2677b] | 700 | oe_save_excursion(e, &x); |
---|
[84027015] | 701 | |
---|
[fc2677b] | 702 | while (owl_editwin_point_move(e, -1)) { |
---|
| 703 | c = owl_editwin_get_char_at_point(e); |
---|
| 704 | if (owl_util_can_break_after(c) || c == '\n') { |
---|
| 705 | if (c != '\n') |
---|
| 706 | owl_editwin_replace(e, c != ' ' ? 0 : 1, "\n"); |
---|
| 707 | break; |
---|
[2d4ff14] | 708 | } |
---|
[7d4fbcd] | 709 | } |
---|
[fc2677b] | 710 | |
---|
| 711 | oe_restore_excursion(e, &x); |
---|
[7d4fbcd] | 712 | } |
---|
| 713 | |
---|
[c9334b1] | 714 | /* delete the character at the current point, following chars |
---|
| 715 | * shift left. |
---|
[e20d8179] | 716 | */ |
---|
[c9334b1] | 717 | void owl_editwin_delete_char(owl_editwin *e) |
---|
| 718 | { |
---|
[5b5f3e6] | 719 | owl_editwin_replace(e, 1, ""); |
---|
[7d4fbcd] | 720 | } |
---|
| 721 | |
---|
[c9334b1] | 722 | /* Swap the character at point with the character at point-1 and |
---|
| 723 | * advance the pointer. If point is at beginning of buffer do |
---|
| 724 | * nothing. If point is after the last character swap point-1 with |
---|
[e20d8179] | 725 | * point-2. (Behaves as observed in tcsh and emacs). |
---|
[c9334b1] | 726 | */ |
---|
| 727 | void owl_editwin_transpose_chars(owl_editwin *e) |
---|
| 728 | { |
---|
[e19eb97] | 729 | const char *middle, *end, *start; |
---|
[65b2173] | 730 | char *tmp; |
---|
[f2e36b5] | 731 | |
---|
[47519e1b] | 732 | if (e->bufflen == 0) return; |
---|
[e20d8179] | 733 | |
---|
[5b5f3e6] | 734 | if (e->index == e->bufflen) |
---|
| 735 | owl_editwin_point_move(e, -1); /* point is after last character */ |
---|
[f2e36b5] | 736 | |
---|
[5b5f3e6] | 737 | if (owl_editwin_at_beginning_of_buffer(e)) |
---|
| 738 | return; /* point is at beginning of buffer, do nothing */ |
---|
[f2e36b5] | 739 | |
---|
[47519e1b] | 740 | /* Transpose two utf-8 unicode glyphs. */ |
---|
[5b5f3e6] | 741 | middle = e->buff + e->index; |
---|
[47519e1b] | 742 | |
---|
[5b5f3e6] | 743 | end = oe_next_point(e, middle); |
---|
| 744 | if (end == NULL) |
---|
[e20d8179] | 745 | return; |
---|
[47519e1b] | 746 | |
---|
[5b5f3e6] | 747 | start = oe_prev_point(e, middle); |
---|
| 748 | if (start == NULL) |
---|
[e20d8179] | 749 | return; |
---|
[47519e1b] | 750 | |
---|
[5b5f3e6] | 751 | tmp = owl_malloc((end - start) + 1); |
---|
| 752 | tmp[(end - start)] = 0; |
---|
| 753 | memcpy(tmp, middle, end - middle); |
---|
| 754 | memcpy(tmp + (end - middle), start, middle - start); |
---|
| 755 | |
---|
| 756 | owl_editwin_point_move(e, -1); |
---|
| 757 | owl_editwin_replace(e, 2, tmp); |
---|
[f2e36b5] | 758 | } |
---|
| 759 | |
---|
[c9334b1] | 760 | /* insert 'string' at the current point, later text is shifted |
---|
| 761 | * right |
---|
| 762 | */ |
---|
[e19eb97] | 763 | void owl_editwin_insert_string(owl_editwin *e, const char *s) |
---|
[c9334b1] | 764 | { |
---|
[5b5f3e6] | 765 | owl_editwin_replace(e, 0, s); |
---|
[7d4fbcd] | 766 | } |
---|
| 767 | |
---|
[a556caa] | 768 | /* We assume index is not set to point to a mid-char */ |
---|
[bab52da] | 769 | static gunichar owl_editwin_get_char_at_point(owl_editwin *e) |
---|
[c9334b1] | 770 | { |
---|
[a556caa] | 771 | return g_utf8_get_char(e->buff + e->index); |
---|
| 772 | } |
---|
[7d4fbcd] | 773 | |
---|
[7f0c26f] | 774 | void owl_editwin_exchange_point_and_mark(owl_editwin *e) { |
---|
| 775 | int tmp; |
---|
| 776 | |
---|
| 777 | if (e->mark != -1) { |
---|
| 778 | tmp = e->mark; |
---|
| 779 | owl_editwin_set_mark(e); |
---|
| 780 | oe_set_index(e, tmp); |
---|
| 781 | } |
---|
| 782 | } |
---|
| 783 | |
---|
[e20d8179] | 784 | int owl_editwin_point_move(owl_editwin *e, int delta) |
---|
[84027015] | 785 | { |
---|
[e19eb97] | 786 | const char *p; |
---|
[19f765d] | 787 | int change, d = 0; |
---|
[a556caa] | 788 | |
---|
| 789 | change = MAX(delta, - delta); |
---|
| 790 | p = e->buff + e->index; |
---|
| 791 | |
---|
| 792 | while (d < change && p != NULL) { |
---|
[e20d8179] | 793 | if (delta > 0) |
---|
| 794 | p = oe_next_point(e, p); |
---|
| 795 | else |
---|
| 796 | p = oe_prev_point(e, p); |
---|
| 797 | if (p != NULL) { |
---|
[521bc84] | 798 | oe_set_index(e, p - e->buff); |
---|
[e20d8179] | 799 | d++; |
---|
[a556caa] | 800 | } |
---|
| 801 | } |
---|
| 802 | |
---|
| 803 | return delta > 0 ? d : -d; |
---|
[84027015] | 804 | } |
---|
| 805 | |
---|
[a556caa] | 806 | int owl_editwin_at_beginning_of_buffer(owl_editwin *e) { |
---|
| 807 | if (e->index == e->lock) |
---|
| 808 | return 1; |
---|
[84027015] | 809 | |
---|
[a556caa] | 810 | return 0; |
---|
| 811 | } |
---|
| 812 | |
---|
| 813 | int owl_at_end_of_buffer(owl_editwin *e) { |
---|
| 814 | if (e->index == e->bufflen) |
---|
| 815 | return 1; |
---|
| 816 | |
---|
| 817 | return 0; |
---|
| 818 | } |
---|
| 819 | |
---|
[e9c6fc8] | 820 | static int owl_editwin_at_beginning_of_line(owl_editwin *e) |
---|
[c9334b1] | 821 | { |
---|
[a0fbdee] | 822 | oe_excursion x; |
---|
[a556caa] | 823 | int ret; |
---|
[47519e1b] | 824 | |
---|
[a556caa] | 825 | if (owl_editwin_at_beginning_of_buffer(e)) |
---|
| 826 | return 1; |
---|
[47519e1b] | 827 | |
---|
[a0fbdee] | 828 | oe_save_excursion(e, &x); |
---|
[a556caa] | 829 | owl_editwin_point_move(e, -1); |
---|
[bab52da] | 830 | ret = (owl_editwin_get_char_at_point(e) == '\n'); |
---|
[a0fbdee] | 831 | oe_restore_excursion(e, &x); |
---|
[a556caa] | 832 | |
---|
| 833 | return ret; |
---|
| 834 | } |
---|
| 835 | |
---|
[e19eb97] | 836 | static int owl_editwin_is_char_in(owl_editwin *e, const char *set) |
---|
[a556caa] | 837 | { |
---|
[e19eb97] | 838 | const char *p; |
---|
[5b5f3e6] | 839 | |
---|
| 840 | for (p = set; *p != 0; p = g_utf8_find_next_char(p, NULL)) |
---|
| 841 | if (owl_editwin_get_char_at_point(e) == g_utf8_get_char(p)) |
---|
[a556caa] | 842 | return 1; |
---|
| 843 | return 0; |
---|
| 844 | } |
---|
| 845 | |
---|
[e19eb97] | 846 | int owl_editwin_move_if_in(owl_editwin *e, int delta, const char *set) |
---|
[a556caa] | 847 | { |
---|
| 848 | int change, distance = 0; |
---|
[e20d8179] | 849 | while (owl_editwin_is_char_in(e, set)) { |
---|
[a556caa] | 850 | change = owl_editwin_point_move(e, delta); |
---|
| 851 | distance += change; |
---|
| 852 | if (change == 0) |
---|
| 853 | break; |
---|
[47519e1b] | 854 | } |
---|
[a556caa] | 855 | return distance; |
---|
| 856 | } |
---|
| 857 | |
---|
[e19eb97] | 858 | int owl_editwin_move_if_not_in(owl_editwin *e, int delta, const char *set) |
---|
[a556caa] | 859 | { |
---|
| 860 | int change, distance = 0; |
---|
[e20d8179] | 861 | while (!owl_editwin_is_char_in(e, set)) { |
---|
[a556caa] | 862 | change = owl_editwin_point_move(e, delta); |
---|
| 863 | distance += change; |
---|
| 864 | if (change == 0) |
---|
| 865 | break; |
---|
[7d4fbcd] | 866 | } |
---|
[a556caa] | 867 | return distance; |
---|
[7d4fbcd] | 868 | } |
---|
| 869 | |
---|
[e20d8179] | 870 | int owl_editwin_move_to_beginning_of_line(owl_editwin *e) |
---|
[47519e1b] | 871 | { |
---|
[a556caa] | 872 | int distance = 0; |
---|
[47519e1b] | 873 | |
---|
[a556caa] | 874 | if (!owl_editwin_at_beginning_of_line(e)) { |
---|
| 875 | /* move off the \n if were at the end of a line */ |
---|
| 876 | distance += owl_editwin_point_move(e, -1); |
---|
| 877 | distance += owl_editwin_move_if_not_in(e, -1, "\n"); |
---|
[335413f1] | 878 | /* If we stopped because we reached a '\n', rather than because we |
---|
| 879 | * hit the top of the buffer, move forward from the end of the |
---|
| 880 | * previous line to the start of the current. */ |
---|
| 881 | if (owl_editwin_get_char_at_point(e) == '\n') |
---|
[a556caa] | 882 | distance += owl_editwin_point_move(e, 1); |
---|
[47519e1b] | 883 | } |
---|
[77d4402] | 884 | e->goal_column = 0; /* subtleties */ |
---|
[84027015] | 885 | |
---|
[a556caa] | 886 | return distance; |
---|
| 887 | } |
---|
[e20d8179] | 888 | |
---|
| 889 | int owl_editwin_move_to_end_of_line(owl_editwin *e) |
---|
[a556caa] | 890 | { |
---|
| 891 | return owl_editwin_move_if_not_in(e, 1, "\n"); |
---|
[47519e1b] | 892 | } |
---|
| 893 | |
---|
[e20d8179] | 894 | int owl_editwin_line_move(owl_editwin *e, int delta) |
---|
[c9334b1] | 895 | { |
---|
[d7043b4] | 896 | int goal_column, change, ll, distance; |
---|
| 897 | int count = 0; |
---|
[a556caa] | 898 | |
---|
| 899 | change = MAX(delta, -delta); |
---|
| 900 | |
---|
[d7043b4] | 901 | goal_column = e->goal_column; |
---|
| 902 | distance = owl_editwin_move_to_beginning_of_line(e); |
---|
| 903 | goal_column = goal_column == -1 ? -distance : goal_column; |
---|
[a556caa] | 904 | |
---|
| 905 | while(count < change) { |
---|
| 906 | if (delta > 0) { |
---|
| 907 | distance += owl_editwin_move_if_not_in(e, 1, "\n"); |
---|
| 908 | distance += owl_editwin_point_move(e, 1); |
---|
| 909 | } else { |
---|
| 910 | /* I really want to assert delta < 0 here */ |
---|
| 911 | distance += owl_editwin_point_move(e, -1); /* to the newline on |
---|
| 912 | the previous line */ |
---|
| 913 | distance += owl_editwin_move_to_beginning_of_line(e); |
---|
| 914 | } |
---|
| 915 | count++; |
---|
[7d4fbcd] | 916 | } |
---|
[a556caa] | 917 | |
---|
| 918 | distance += (ll = owl_editwin_move_to_end_of_line(e)); |
---|
| 919 | if (ll > goal_column) |
---|
| 920 | distance += owl_editwin_point_move(e, goal_column - ll); |
---|
| 921 | |
---|
| 922 | e->goal_column = goal_column; |
---|
[f6fae8d] | 923 | oe_dirty(e); |
---|
[a556caa] | 924 | |
---|
| 925 | return distance; |
---|
[7d4fbcd] | 926 | } |
---|
| 927 | |
---|
[c9334b1] | 928 | void owl_editwin_backspace(owl_editwin *e) |
---|
| 929 | { |
---|
[7d4fbcd] | 930 | /* delete the char before the current one |
---|
| 931 | * and shift later chars left |
---|
| 932 | */ |
---|
[a556caa] | 933 | if(owl_editwin_point_move(e, -1)) |
---|
[7d4fbcd] | 934 | owl_editwin_delete_char(e); |
---|
| 935 | } |
---|
| 936 | |
---|
[c9334b1] | 937 | void owl_editwin_key_up(owl_editwin *e) |
---|
| 938 | { |
---|
[a556caa] | 939 | owl_editwin_line_move(e, -1); |
---|
[7d4fbcd] | 940 | } |
---|
| 941 | |
---|
[c9334b1] | 942 | void owl_editwin_key_down(owl_editwin *e) |
---|
| 943 | { |
---|
[a556caa] | 944 | owl_editwin_line_move(e, 1); |
---|
[7d4fbcd] | 945 | } |
---|
| 946 | |
---|
[c9334b1] | 947 | void owl_editwin_key_left(owl_editwin *e) |
---|
| 948 | { |
---|
[a556caa] | 949 | owl_editwin_point_move(e, -1); |
---|
[7d4fbcd] | 950 | } |
---|
| 951 | |
---|
[c9334b1] | 952 | void owl_editwin_key_right(owl_editwin *e) |
---|
| 953 | { |
---|
[a556caa] | 954 | owl_editwin_point_move(e, 1); |
---|
[7d4fbcd] | 955 | } |
---|
| 956 | |
---|
[5b5f3e6] | 957 | int owl_editwin_forward_word(owl_editwin *e) |
---|
[c9334b1] | 958 | { |
---|
[5b5f3e6] | 959 | int distance; |
---|
[7d4fbcd] | 960 | /* if we're starting on a space, find the first non-space */ |
---|
[5b5f3e6] | 961 | distance = owl_editwin_move_if_in(e, 1, WHITESPACE); |
---|
[7d4fbcd] | 962 | |
---|
[a556caa] | 963 | /* now find the end of this word */ |
---|
[5b5f3e6] | 964 | distance += owl_editwin_move_if_not_in(e, 1, WHITESPACE); |
---|
| 965 | |
---|
| 966 | return distance; |
---|
| 967 | } |
---|
| 968 | |
---|
| 969 | void owl_editwin_move_to_nextword(owl_editwin *e) |
---|
| 970 | { |
---|
| 971 | owl_editwin_forward_word(e); |
---|
[7d4fbcd] | 972 | } |
---|
| 973 | |
---|
[c9334b1] | 974 | /* go backwards to the last non-space character |
---|
| 975 | */ |
---|
[5b5f3e6] | 976 | int owl_editwin_backward_word(owl_editwin *e) |
---|
[c9334b1] | 977 | { |
---|
[a0fbdee] | 978 | oe_excursion x; |
---|
[5b5f3e6] | 979 | int distance = 0; |
---|
| 980 | int further = 0; |
---|
[a556caa] | 981 | int beginning; |
---|
| 982 | /* if in middle of word, beginning of word */ |
---|
| 983 | |
---|
| 984 | /* if at beginning of a word, find beginning of previous word */ |
---|
| 985 | |
---|
[e20d8179] | 986 | if (owl_editwin_is_char_in(e, WHITESPACE)) { |
---|
[a556caa] | 987 | /* if in whitespace past end of word, find a word , the find the beginning*/ |
---|
[5b5f3e6] | 988 | distance += owl_editwin_move_if_in(e, -1, WHITESPACE); /* leaves us on the last |
---|
| 989 | character of the word */ |
---|
[a0fbdee] | 990 | oe_save_excursion(e, &x); |
---|
[a556caa] | 991 | /* are we at the beginning of a word? */ |
---|
| 992 | owl_editwin_point_move(e, -1); |
---|
[e20d8179] | 993 | beginning = owl_editwin_is_char_in(e, WHITESPACE); |
---|
[a0fbdee] | 994 | oe_restore_excursion(e, &x); |
---|
[a556caa] | 995 | if (beginning) |
---|
[5b5f3e6] | 996 | return distance; |
---|
[a556caa] | 997 | } else { |
---|
| 998 | /* in the middle of the word; */ |
---|
[a0fbdee] | 999 | oe_save_excursion(e, &x); |
---|
[5b5f3e6] | 1000 | further += owl_editwin_point_move(e, -1); |
---|
[e20d8179] | 1001 | if (owl_editwin_is_char_in(e, WHITESPACE)) { /* we were at the beginning */ |
---|
[5b5f3e6] | 1002 | distance += owl_editwin_backward_word(e); /* previous case */ |
---|
[8321cb7] | 1003 | oe_release_excursion(e, &x); |
---|
[5b5f3e6] | 1004 | return distance + further; |
---|
[a556caa] | 1005 | } else { |
---|
[a0fbdee] | 1006 | oe_restore_excursion(e, &x); |
---|
[7d4fbcd] | 1007 | } |
---|
| 1008 | } |
---|
[5b5f3e6] | 1009 | distance += owl_editwin_move_if_not_in(e, -1, WHITESPACE); |
---|
[a556caa] | 1010 | /* will go past */ |
---|
| 1011 | if (e->index > e->lock) |
---|
[5b5f3e6] | 1012 | distance += owl_editwin_point_move(e, 1); |
---|
| 1013 | return distance; |
---|
| 1014 | } |
---|
| 1015 | |
---|
| 1016 | void owl_editwin_move_to_previousword(owl_editwin *e) |
---|
| 1017 | { |
---|
| 1018 | owl_editwin_backward_word(e); |
---|
[7d4fbcd] | 1019 | } |
---|
| 1020 | |
---|
[c9334b1] | 1021 | void owl_editwin_delete_nextword(owl_editwin *e) |
---|
| 1022 | { |
---|
[a0fbdee] | 1023 | oe_excursion x; |
---|
[a556caa] | 1024 | |
---|
[a0fbdee] | 1025 | oe_save_excursion(e, &x); |
---|
[a60edf2] | 1026 | oe_set_mark(e, e->index); |
---|
| 1027 | owl_editwin_forward_word(e); |
---|
| 1028 | owl_editwin_kill_region(e); |
---|
| 1029 | oe_restore_mark_only(e, &x); |
---|
[7d4fbcd] | 1030 | } |
---|
| 1031 | |
---|
[c9334b1] | 1032 | void owl_editwin_delete_previousword(owl_editwin *e) |
---|
| 1033 | { |
---|
[a60edf2] | 1034 | oe_excursion x; |
---|
[b68f9cd] | 1035 | |
---|
[a60edf2] | 1036 | oe_save_excursion(e, &x); |
---|
| 1037 | oe_set_mark(e, e->index); |
---|
| 1038 | owl_editwin_backward_word(e); |
---|
| 1039 | owl_editwin_kill_region(e); |
---|
| 1040 | oe_restore_mark_only(e, &x); |
---|
[b68f9cd] | 1041 | } |
---|
| 1042 | |
---|
[a556caa] | 1043 | void owl_editwin_move_to_line_end(owl_editwin *e) |
---|
[c9334b1] | 1044 | { |
---|
[a556caa] | 1045 | owl_editwin_move_to_end_of_line(e); |
---|
[7d4fbcd] | 1046 | } |
---|
| 1047 | |
---|
[a556caa] | 1048 | void owl_editwin_delete_to_endofline(owl_editwin *e) |
---|
[c9334b1] | 1049 | { |
---|
[a0fbdee] | 1050 | oe_excursion x; |
---|
[5b5f3e6] | 1051 | int distance; |
---|
[a556caa] | 1052 | |
---|
[a0fbdee] | 1053 | oe_save_excursion(e, &x); |
---|
[a60edf2] | 1054 | owl_editwin_set_mark(e); |
---|
[5b5f3e6] | 1055 | distance = owl_editwin_move_to_end_of_line(e); |
---|
[a60edf2] | 1056 | if (distance) |
---|
| 1057 | owl_editwin_kill_region(e); |
---|
| 1058 | else |
---|
| 1059 | owl_editwin_replace(e, 1, ""); |
---|
[a0fbdee] | 1060 | oe_restore_excursion(e, &x); |
---|
[a60edf2] | 1061 | } |
---|
| 1062 | |
---|
| 1063 | void owl_editwin_yank(owl_editwin *e) |
---|
| 1064 | { |
---|
| 1065 | if (e->killbuf != NULL) |
---|
| 1066 | owl_editwin_replace(e, 0, e->killbuf); |
---|
| 1067 | } |
---|
| 1068 | |
---|
[e19eb97] | 1069 | static const char *oe_copy_buf(owl_editwin *e, const char *buf, int len) |
---|
[a60edf2] | 1070 | { |
---|
| 1071 | char *p; |
---|
| 1072 | |
---|
| 1073 | p = owl_malloc(len + 1); |
---|
| 1074 | |
---|
| 1075 | if (p != NULL) { |
---|
| 1076 | owl_free(e->killbuf); |
---|
| 1077 | e->killbuf = p; |
---|
| 1078 | memcpy(e->killbuf, buf, len); |
---|
| 1079 | e->killbuf[len] = 0; |
---|
| 1080 | } |
---|
| 1081 | |
---|
| 1082 | return p; |
---|
| 1083 | } |
---|
| 1084 | |
---|
| 1085 | static int oe_copy_region(owl_editwin *e) |
---|
| 1086 | { |
---|
[e19eb97] | 1087 | const char *p; |
---|
[a60edf2] | 1088 | int start, end; |
---|
| 1089 | |
---|
| 1090 | if (e->mark == -1) |
---|
| 1091 | return 0; |
---|
| 1092 | |
---|
| 1093 | start = MIN(e->index, e->mark); |
---|
| 1094 | end = MAX(e->index, e->mark); |
---|
| 1095 | |
---|
| 1096 | p = oe_copy_buf(e, e->buff + start, end - start); |
---|
| 1097 | if (p != NULL) |
---|
| 1098 | return end - start; |
---|
| 1099 | return 0; |
---|
| 1100 | } |
---|
| 1101 | |
---|
| 1102 | void owl_editwin_copy_region_as_kill(owl_editwin *e) |
---|
| 1103 | { |
---|
| 1104 | oe_copy_region(e); |
---|
| 1105 | } |
---|
| 1106 | |
---|
| 1107 | void owl_editwin_kill_region(owl_editwin *e) |
---|
| 1108 | { |
---|
| 1109 | if (e->index > e->mark) |
---|
| 1110 | owl_editwin_exchange_point_and_mark(e); |
---|
| 1111 | |
---|
[2184001] | 1112 | owl_editwin_replace_internal(e, oe_copy_region(e), ""); |
---|
[7d4fbcd] | 1113 | } |
---|
| 1114 | |
---|
[c9334b1] | 1115 | void owl_editwin_move_to_line_start(owl_editwin *e) |
---|
| 1116 | { |
---|
[a556caa] | 1117 | owl_editwin_move_to_beginning_of_line(e); |
---|
[7d4fbcd] | 1118 | } |
---|
| 1119 | |
---|
[c9334b1] | 1120 | void owl_editwin_move_to_end(owl_editwin *e) |
---|
| 1121 | { |
---|
[521bc84] | 1122 | oe_set_index(e, e->bufflen); |
---|
[7d4fbcd] | 1123 | } |
---|
| 1124 | |
---|
[c9334b1] | 1125 | void owl_editwin_move_to_top(owl_editwin *e) |
---|
| 1126 | { |
---|
[521bc84] | 1127 | oe_set_index(e, e->lock); |
---|
[7d4fbcd] | 1128 | } |
---|
| 1129 | |
---|
[2fc8397] | 1130 | void owl_editwin_backward_paragraph(owl_editwin *e) |
---|
| 1131 | { |
---|
| 1132 | owl_editwin_point_move(e, -1); |
---|
| 1133 | for (; e->index >= e->lock; owl_editwin_point_move(e, -1)) { |
---|
| 1134 | if (e->index <= e->lock || |
---|
| 1135 | ((e->buff[e->index] == '\n') && (e->buff[e->index - 1]=='\n'))) |
---|
| 1136 | break; |
---|
| 1137 | } |
---|
| 1138 | } |
---|
| 1139 | |
---|
| 1140 | void owl_editwin_forward_paragraph(owl_editwin *e) |
---|
| 1141 | { |
---|
| 1142 | owl_editwin_point_move(e, 1); |
---|
| 1143 | /* scan forward to the start of the next paragraph */ |
---|
| 1144 | for(; e->index < e->bufflen; owl_editwin_point_move(e, 1)) { |
---|
| 1145 | if (e->buff[e->index -1] == '\n' && e->buff[e->index] == '\n') |
---|
| 1146 | break; |
---|
| 1147 | } |
---|
| 1148 | } |
---|
| 1149 | |
---|
[d41294a] | 1150 | int owl_editwin_current_column(owl_editwin *e) |
---|
[c9334b1] | 1151 | { |
---|
[a0fbdee] | 1152 | oe_excursion x; |
---|
[fc2677b] | 1153 | int lineindex; |
---|
[7d4fbcd] | 1154 | |
---|
[a0fbdee] | 1155 | oe_save_excursion(e, &x); |
---|
[fc2677b] | 1156 | owl_editwin_move_to_beginning_of_line(e); |
---|
| 1157 | lineindex = e->index; |
---|
| 1158 | oe_restore_excursion(e, &x); |
---|
| 1159 | return oe_region_width(e, lineindex, e->index, 0); |
---|
| 1160 | } |
---|
[a556caa] | 1161 | |
---|
[fc2677b] | 1162 | void owl_editwin_fill_paragraph(owl_editwin *e) |
---|
| 1163 | { |
---|
| 1164 | oe_excursion x; |
---|
| 1165 | gunichar ch; |
---|
| 1166 | int sentence; |
---|
[7d4fbcd] | 1167 | |
---|
[d625cfd] | 1168 | if (e->fillcol < 0) |
---|
| 1169 | /* auto-fill disabled */ |
---|
| 1170 | return; |
---|
| 1171 | |
---|
[fc2677b] | 1172 | oe_save_excursion(e, &x); |
---|
[7d4fbcd] | 1173 | |
---|
[fc2677b] | 1174 | /* Mark the end of the paragraph */ |
---|
| 1175 | owl_editwin_forward_paragraph(e); |
---|
| 1176 | /* Skip the trailing newline */ |
---|
| 1177 | owl_editwin_point_move(e, -1); |
---|
| 1178 | owl_editwin_set_mark(e); |
---|
[7d4fbcd] | 1179 | |
---|
[fc2677b] | 1180 | owl_editwin_backward_paragraph(e); |
---|
[7d4fbcd] | 1181 | |
---|
[fc2677b] | 1182 | /* Don't mess with the leading newline */ |
---|
| 1183 | if (owl_editwin_get_char_at_point(e) == '\n') |
---|
| 1184 | owl_editwin_point_move(e, 1); |
---|
[7d4fbcd] | 1185 | |
---|
[fc2677b] | 1186 | /* |
---|
| 1187 | * First pass: Scan forward replacing all series of spaces with ' ' |
---|
| 1188 | * (or nothing after CJK ideograms) |
---|
| 1189 | */ |
---|
| 1190 | sentence = 0; |
---|
| 1191 | for(;e->index < e->mark; owl_editwin_point_move(e, 1)) { |
---|
[50e671c] | 1192 | /* bail if we hit a trailing dot on the buffer */ |
---|
[fc2677b] | 1193 | if (strcmp(e->buff + e->index, "\n.") == 0) { |
---|
| 1194 | owl_editwin_set_mark(e); |
---|
[50e671c] | 1195 | break; |
---|
[7d4fbcd] | 1196 | } |
---|
| 1197 | |
---|
[fc2677b] | 1198 | ch = owl_editwin_get_char_at_point(e); |
---|
[b2c1bd4] | 1199 | |
---|
[fc2677b] | 1200 | if (owl_util_can_break_after(ch) || ch == '\n') { |
---|
| 1201 | if (g_unichar_isspace(ch)) { |
---|
| 1202 | owl_editwin_replace(e, 1, " "); |
---|
| 1203 | } |
---|
| 1204 | |
---|
[f9d257b] | 1205 | if (sentence && g_unichar_isspace(owl_editwin_get_char_at_point(e)) |
---|
| 1206 | && e->index < e->mark) |
---|
[fc2677b] | 1207 | owl_editwin_point_move(e, 1); |
---|
| 1208 | |
---|
| 1209 | while(g_unichar_isspace(owl_editwin_get_char_at_point(e)) |
---|
| 1210 | && e->index < e->mark) { |
---|
| 1211 | owl_editwin_delete_char(e); |
---|
[7d4fbcd] | 1212 | } |
---|
| 1213 | } |
---|
[fc2677b] | 1214 | |
---|
| 1215 | if(ch == '.' || ch == '!' || ch == '?') |
---|
| 1216 | sentence = 1; |
---|
| 1217 | else |
---|
| 1218 | sentence = 0; |
---|
| 1219 | } |
---|
| 1220 | |
---|
| 1221 | owl_editwin_backward_paragraph(e); |
---|
| 1222 | |
---|
| 1223 | /* Now go through inserting newlines as needed */ |
---|
| 1224 | while(e->index < e->mark) { |
---|
| 1225 | /* if we've travelled too far, linewrap */ |
---|
[d41294a] | 1226 | if (owl_editwin_current_column(e) >= e->fillcol) |
---|
[fc2677b] | 1227 | _owl_editwin_linewrap_word(e); |
---|
| 1228 | owl_editwin_point_move(e, 1); |
---|
[7d4fbcd] | 1229 | } |
---|
| 1230 | |
---|
[a0fbdee] | 1231 | oe_restore_excursion(e, &x); |
---|
[7d4fbcd] | 1232 | } |
---|
| 1233 | |
---|
[cf83b7a] | 1234 | /* returns true if only whitespace remains */ |
---|
[c9334b1] | 1235 | int owl_editwin_is_at_end(owl_editwin *e) |
---|
| 1236 | { |
---|
[a556caa] | 1237 | return (only_whitespace(e->buff + e->index)); |
---|
[217a43e] | 1238 | } |
---|
| 1239 | |
---|
[bab52da] | 1240 | static int owl_editwin_check_dotsend(owl_editwin *e) |
---|
[c9334b1] | 1241 | { |
---|
[dc7884d] | 1242 | int zdot = 0; |
---|
[72ab15f] | 1243 | oe_excursion x; |
---|
[7d4fbcd] | 1244 | |
---|
| 1245 | if (!e->dotsend) return(0); |
---|
[4ccd92c] | 1246 | if (!owl_editwin_is_at_end(e)) return (0); |
---|
[47519e1b] | 1247 | |
---|
[72ab15f] | 1248 | oe_save_excursion(e, &x); |
---|
| 1249 | |
---|
| 1250 | owl_editwin_point_move(e, -3); |
---|
| 1251 | |
---|
[4ccd92c] | 1252 | if(strncmp(e->buff + e->index, "\n.\n", 3) == 0) { |
---|
[dc7884d] | 1253 | owl_editwin_point_move(e, 1); |
---|
| 1254 | zdot = 1; |
---|
[0509efc] | 1255 | } else if(e->index == e->lock && |
---|
[4ccd92c] | 1256 | strncmp(e->buff + e->index, ".\n", 2) == 0) { |
---|
[0509efc] | 1257 | zdot = 1; |
---|
| 1258 | } |
---|
| 1259 | |
---|
| 1260 | if(zdot) { |
---|
[4ccd92c] | 1261 | owl_editwin_set_mark(e); |
---|
| 1262 | owl_editwin_move_to_end(e); |
---|
| 1263 | owl_editwin_replace_region(e, ""); |
---|
[dc7884d] | 1264 | } |
---|
[72ab15f] | 1265 | |
---|
| 1266 | oe_restore_excursion(e, &x); |
---|
| 1267 | |
---|
| 1268 | return zdot; |
---|
[7d4fbcd] | 1269 | } |
---|
| 1270 | |
---|
[fac5463] | 1271 | void owl_editwin_post_process_char(owl_editwin *e, owl_input j) |
---|
[c9334b1] | 1272 | { |
---|
[a556caa] | 1273 | /* XXX force a redisplay? */ |
---|
[fac5463] | 1274 | if ((j.ch==13 || j.ch==10) && owl_editwin_check_dotsend(e)) { |
---|
[435d6b2] | 1275 | owl_command_edit_done(e); |
---|
[7d4fbcd] | 1276 | return; |
---|
| 1277 | } |
---|
| 1278 | } |
---|
| 1279 | |
---|
[3e36085] | 1280 | static int oe_region_width(owl_editwin *e, int start, int end, int offset) |
---|
[16cfd12a] | 1281 | { |
---|
[e19eb97] | 1282 | const char *p; |
---|
[3e36085] | 1283 | int width = offset; |
---|
| 1284 | |
---|
[16cfd12a] | 1285 | for(p = e->buff + start; |
---|
| 1286 | p < e->buff + end; |
---|
| 1287 | p = g_utf8_find_next_char(p, NULL)) |
---|
| 1288 | width += oe_char_width(g_utf8_get_char(p), width); |
---|
| 1289 | |
---|
[3e36085] | 1290 | return width - offset; |
---|
[16cfd12a] | 1291 | } |
---|
| 1292 | |
---|
[ebf0128] | 1293 | static void oe_insert_char(owl_editwin *e, gunichar c) |
---|
[fac5463] | 1294 | { |
---|
[16cfd12a] | 1295 | oe_excursion x; |
---|
[5b5f3e6] | 1296 | char tmp[7]; |
---|
[16cfd12a] | 1297 | int replaced = -1; |
---|
[5b5f3e6] | 1298 | |
---|
[ebf0128] | 1299 | if (c == '\r') /* translate CRs to NLs */ |
---|
| 1300 | c = '\n'; |
---|
| 1301 | |
---|
[16cfd12a] | 1302 | if (!g_unichar_iscntrl(c) || c == '\n' || c== '\t' ) { |
---|
[ebf0128] | 1303 | if (c == '\n' && e->style == OWL_EDITWIN_STYLE_ONELINE) { |
---|
| 1304 | return; |
---|
| 1305 | } |
---|
| 1306 | |
---|
[d625cfd] | 1307 | if (e->wrapcol > 0 && e->cursorx != -1 && |
---|
| 1308 | e->cursorx + oe_char_width(c, e->cursorx) > e->wrapcol) { |
---|
[16cfd12a] | 1309 | /* XXX this is actually wrong: |
---|
| 1310 | * + If the line has been been wrapped, we can be past the wrap column but |
---|
| 1311 | * e->cursorx be much smaller. |
---|
| 1312 | * + If the user went back and inserted a bunch of stuff in the middle of |
---|
| 1313 | * the line, there may be more than one word past the wrap column. |
---|
| 1314 | */ |
---|
| 1315 | oe_save_excursion(e, &x); |
---|
| 1316 | |
---|
| 1317 | if (c == ' ' || c == '\t') { |
---|
| 1318 | owl_editwin_point_move(e, -1); |
---|
| 1319 | replaced = -owl_editwin_move_if_in(e, -1, " \t"); |
---|
| 1320 | if (!replaced) { |
---|
| 1321 | c = '\n'; |
---|
| 1322 | replaced = -1; |
---|
| 1323 | } |
---|
| 1324 | } else { |
---|
| 1325 | while(!owl_editwin_at_beginning_of_line(e)) { |
---|
| 1326 | owl_editwin_point_move(e, -1); |
---|
| 1327 | if (owl_util_can_break_after(owl_editwin_get_char_at_point(e))) { |
---|
| 1328 | replaced = -owl_editwin_move_if_in(e, -1, " \t"); |
---|
| 1329 | break; |
---|
| 1330 | } |
---|
| 1331 | } |
---|
| 1332 | if (owl_editwin_at_beginning_of_line(e)) |
---|
| 1333 | replaced = -1; |
---|
| 1334 | } |
---|
| 1335 | if (replaced && !owl_editwin_at_beginning_of_line(e)) |
---|
| 1336 | owl_editwin_point_move(e, 1); |
---|
| 1337 | if (replaced >= 0) { |
---|
| 1338 | owl_editwin_replace(e, replaced, "\n"); |
---|
| 1339 | } |
---|
| 1340 | oe_restore_excursion(e, &x); |
---|
| 1341 | } |
---|
| 1342 | |
---|
| 1343 | if (replaced >= 0 && (c == ' ' || c == '\t')) |
---|
| 1344 | return; /* our work here is done */ |
---|
| 1345 | |
---|
[6c171f1] | 1346 | tmp[g_unichar_to_utf8(c, tmp)] = '\0'; |
---|
[ebf0128] | 1347 | owl_editwin_replace(e, 0, tmp); |
---|
| 1348 | } |
---|
| 1349 | } |
---|
| 1350 | |
---|
| 1351 | void owl_editwin_process_char(owl_editwin *e, owl_input j) |
---|
| 1352 | { |
---|
[5b5f3e6] | 1353 | if (j.ch == ERR) |
---|
| 1354 | return; |
---|
[fac5463] | 1355 | /* Ignore ncurses control characters. */ |
---|
[e20d8179] | 1356 | if (j.ch < 0x100) { |
---|
[ebf0128] | 1357 | oe_insert_char(e, j.uch); |
---|
[fac5463] | 1358 | } |
---|
| 1359 | } |
---|
| 1360 | |
---|
[e19eb97] | 1361 | const char *owl_editwin_get_text(owl_editwin *e) |
---|
[c9334b1] | 1362 | { |
---|
[7d4fbcd] | 1363 | return(e->buff+e->lock); |
---|
| 1364 | } |
---|
| 1365 | |
---|
[d41294a] | 1366 | char *owl_editwin_get_region(owl_editwin *e) |
---|
| 1367 | { |
---|
| 1368 | int start, end; |
---|
| 1369 | start = e->index; |
---|
| 1370 | end = e->mark; |
---|
| 1371 | if(start > end) { |
---|
| 1372 | int tmp = end; |
---|
| 1373 | end = start; |
---|
| 1374 | start = tmp; |
---|
| 1375 | } |
---|
| 1376 | |
---|
| 1377 | return oe_chunk(e, start, end); |
---|
| 1378 | } |
---|
| 1379 | |
---|
[77f605d] | 1380 | int owl_editwin_get_echochar(owl_editwin *e) |
---|
| 1381 | { |
---|
[a556caa] | 1382 | return e->echochar; |
---|
| 1383 | } |
---|
[77f605d] | 1384 | |
---|
| 1385 | static char *oe_chunk(owl_editwin *e, int start, int end) |
---|
| 1386 | { |
---|
| 1387 | char *p; |
---|
| 1388 | |
---|
| 1389 | p = owl_malloc(end - start + 1); |
---|
| 1390 | memcpy(p, e->buff + start, end - start); |
---|
| 1391 | p[end - start] = 0; |
---|
| 1392 | |
---|
| 1393 | return p; |
---|
| 1394 | } |
---|
| 1395 | |
---|
[d41294a] | 1396 | /* |
---|
| 1397 | * The only guarantee made about these values is that comparisons |
---|
| 1398 | * between them, as well as comparison between multiple calls to these |
---|
| 1399 | * functions without modifying the editwin in-between, are meaningful. |
---|
| 1400 | */ |
---|
| 1401 | |
---|
| 1402 | int owl_editwin_get_point(owl_editwin *e) |
---|
| 1403 | { |
---|
| 1404 | return e->index; |
---|
| 1405 | } |
---|
| 1406 | |
---|
| 1407 | int owl_editwin_get_mark(owl_editwin *e) |
---|
| 1408 | { |
---|
| 1409 | return e->mark; |
---|
| 1410 | } |
---|
| 1411 | |
---|
[f6fae8d] | 1412 | static void oe_dirty(owl_editwin *e) |
---|
| 1413 | { |
---|
| 1414 | if (e->win) owl_window_dirty(e->win); |
---|
| 1415 | } |
---|
| 1416 | |
---|
[2f21a41] | 1417 | |
---|
| 1418 | /* |
---|
| 1419 | * Local Variables: |
---|
| 1420 | * mode:C |
---|
| 1421 | * c-basic-offset:2 |
---|
| 1422 | * End: |
---|
| 1423 | */ |
---|