[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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[1aee7d9] | 7 | static const char fileIdent[] = "$Id$"; |
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| 8 | |
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[ebf0128] | 9 | #define VALID_EXCURSION (0x9a2b4729) |
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| 10 | |
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| 11 | typedef struct oe_excursion_struct { /*noproto*/ |
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| 12 | int valid; |
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| 13 | int index; |
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| 14 | int goal_column; |
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| 15 | int lock; |
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| 16 | struct oe_excursion_struct *next; |
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| 17 | } oe_excursion; |
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| 18 | |
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[a556caa] | 19 | struct _owl_editwin { /*noproto*/ |
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| 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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| 25 | int goal_column; |
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| 26 | int topindex; |
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[ebf0128] | 27 | int cursorx; |
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[a556caa] | 28 | int winlines, wincols, fillcol, wrapcol; |
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| 29 | WINDOW *curswin; |
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| 30 | int style; |
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| 31 | int lock; |
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| 32 | int dotsend; |
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| 33 | int echochar; |
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[ebf0128] | 34 | oe_excursion *excursions; |
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[a556caa] | 35 | |
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| 36 | char *command; |
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| 37 | void (*callback)(struct _owl_editwin*); |
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| 38 | void *cbdata; |
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| 39 | }; |
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| 40 | |
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| 41 | |
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[e20d8179] | 42 | static void oe_reframe(owl_editwin *e); |
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[bab52da] | 43 | static void oe_save_excursion(owl_editwin *e, oe_excursion *x); |
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[ebf0128] | 44 | static void oe_release_excursion(owl_editwin *e, oe_excursion *x); |
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[bab52da] | 45 | static void oe_restore_excursion(owl_editwin *e, oe_excursion *x); |
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[ebf0128] | 46 | static int oe_count_glyphs(char *s); |
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| 47 | static int oe_char_width(gunichar c, int column); |
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[bab52da] | 48 | static int oe_find_display_line(owl_editwin *e, int *x, int index); |
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[ebf0128] | 49 | static void oe_insert_char(owl_editwin *e, gunichar c); |
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[bab52da] | 50 | static int owl_editwin_limit_maxcols(int v, int maxv); |
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| 51 | static int owl_editwin_check_dotsend(owl_editwin *e); |
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| 52 | static int owl_editwin_is_char_in(owl_editwin *e, char *set); |
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| 53 | static gunichar owl_editwin_get_char_at_point(owl_editwin *e); |
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[ebf0128] | 54 | static int owl_editwin_replace(owl_editwin *e, int count, char *s); |
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[bab52da] | 55 | |
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[5b5f3e6] | 56 | #define INCR 4096 |
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[7d4fbcd] | 57 | |
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[a556caa] | 58 | #define WHITESPACE " \n\t" |
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| 59 | |
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[bab52da] | 60 | owl_editwin *owl_editwin_allocate(void) |
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| 61 | { |
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[a556caa] | 62 | return owl_malloc(sizeof(owl_editwin)); |
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| 63 | } |
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| 64 | |
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[5b5f3e6] | 65 | static int oe_count_glyphs(char *s) |
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| 66 | { |
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| 67 | int count = 0; |
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| 68 | char *p; |
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| 69 | |
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| 70 | for(p = s; *p != 0; p = g_utf8_find_next_char(p, NULL)) |
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| 71 | if (!g_unichar_ismark(g_utf8_get_char(p))) |
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| 72 | count++; |
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| 73 | |
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| 74 | return count; |
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| 75 | } |
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| 76 | |
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[bab52da] | 77 | static inline void oe_set_index(owl_editwin *e, int index) |
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| 78 | { |
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[ebf0128] | 79 | if (index != e->index) { |
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| 80 | e->goal_column = -1; |
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| 81 | e->cursorx = -1; |
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| 82 | } |
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[521bc84] | 83 | e->index = index; |
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| 84 | } |
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| 85 | |
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[cf83b7a] | 86 | /* initialize the editwin e. |
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| 87 | * 'win' is an already initialzed curses window that will be used by editwin |
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| 88 | */ |
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[c9334b1] | 89 | void owl_editwin_init(owl_editwin *e, WINDOW *win, int winlines, int wincols, int style, owl_history *hist) |
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| 90 | { |
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[e20d8179] | 91 | e->buff=owl_malloc(INCR); |
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[7d4fbcd] | 92 | e->buff[0]='\0'; |
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| 93 | e->bufflen=0; |
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[10b866d] | 94 | e->hist=hist; |
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[7d4fbcd] | 95 | e->allocated=INCR; |
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[521bc84] | 96 | oe_set_index(e, 0); |
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[a556caa] | 97 | e->goal_column = -1; |
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[ebf0128] | 98 | e->cursorx = -1; |
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| 99 | e->topindex = 0; |
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| 100 | e->excursions = NULL; |
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| 101 | owl_editwin_set_curswin(e, win, winlines, wincols); |
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[7d4fbcd] | 102 | e->style=style; |
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| 103 | if ((style!=OWL_EDITWIN_STYLE_MULTILINE) && |
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| 104 | (style!=OWL_EDITWIN_STYLE_ONELINE)) { |
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| 105 | e->style=OWL_EDITWIN_STYLE_MULTILINE; |
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| 106 | } |
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| 107 | e->lock=0; |
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| 108 | e->dotsend=0; |
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[c9334b1] | 109 | e->echochar='\0'; |
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[e74c01c] | 110 | |
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[af1920fd] | 111 | /* We get initialized multiple times, but we need to hold on to |
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| 112 | the callbacks, so we can't NULL them here. */ |
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[e74c01c] | 113 | /* |
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| 114 | e->command = NULL; |
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| 115 | e->callback = NULL; |
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| 116 | e->cbdata = NULL; |
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| 117 | */ |
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[7d4fbcd] | 118 | if (win) werase(win); |
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| 119 | } |
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| 120 | |
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[c9334b1] | 121 | void owl_editwin_set_curswin(owl_editwin *e, WINDOW *w, int winlines, int wincols) |
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| 122 | { |
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[7d4fbcd] | 123 | e->curswin=w; |
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| 124 | e->winlines=winlines; |
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| 125 | e->wincols=wincols; |
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[9a6cc40] | 126 | e->fillcol=owl_editwin_limit_maxcols(wincols-7, owl_global_get_edit_maxfillcols(&g)); |
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| 127 | e->wrapcol=owl_editwin_limit_maxcols(wincols-7, owl_global_get_edit_maxwrapcols(&g)); |
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[7d4fbcd] | 128 | } |
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| 129 | |
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[c9334b1] | 130 | /* echo the character 'ch' for each normal character keystroke, |
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| 131 | * excepting locktext. This is useful for entering passwords etc. If |
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| 132 | * ch=='\0' characters are echo'd normally |
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| 133 | */ |
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| 134 | void owl_editwin_set_echochar(owl_editwin *e, int ch) |
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| 135 | { |
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| 136 | e->echochar=ch; |
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| 137 | } |
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| 138 | |
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| 139 | WINDOW *owl_editwin_get_curswin(owl_editwin *e) |
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| 140 | { |
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[060b3b4] | 141 | return(e->curswin); |
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[7d4fbcd] | 142 | } |
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| 143 | |
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[c9334b1] | 144 | owl_history *owl_editwin_get_history(owl_editwin *e) |
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| 145 | { |
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[060b3b4] | 146 | return(e->hist); |
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[10b866d] | 147 | } |
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| 148 | |
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[c9334b1] | 149 | void owl_editwin_set_dotsend(owl_editwin *e) |
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| 150 | { |
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[7d4fbcd] | 151 | e->dotsend=1; |
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| 152 | } |
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| 153 | |
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[bab52da] | 154 | void owl_editwin_set_command(owl_editwin *e, char *command) |
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| 155 | { |
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[e74c01c] | 156 | if(e->command) owl_free(e->command); |
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| 157 | e->command = owl_strdup(command); |
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| 158 | } |
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| 159 | |
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[bab52da] | 160 | char *owl_editwin_get_command(owl_editwin *e) |
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| 161 | { |
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[e74c01c] | 162 | if(e->command) return e->command; |
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| 163 | return ""; |
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| 164 | } |
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| 165 | |
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[bab52da] | 166 | void owl_editwin_set_callback(owl_editwin *e, void (*cb)(owl_editwin*)) |
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| 167 | { |
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[e74c01c] | 168 | e->callback = cb; |
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| 169 | } |
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| 170 | |
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[bab52da] | 171 | void (*owl_editwin_get_callback(owl_editwin *e))(owl_editwin*) |
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| 172 | { |
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[e74c01c] | 173 | return e->callback; |
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| 174 | } |
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| 175 | |
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[bab52da] | 176 | void owl_editwin_set_cbdata(owl_editwin *e, void *data) |
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| 177 | { |
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[e74c01c] | 178 | e->cbdata = data; |
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| 179 | } |
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| 180 | |
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[a556caa] | 181 | void *owl_editwin_get_cbdata(owl_editwin *e) { |
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[e74c01c] | 182 | return e->cbdata; |
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| 183 | } |
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| 184 | |
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| 185 | void owl_editwin_do_callback(owl_editwin *e) { |
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| 186 | void (*cb)(owl_editwin*); |
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| 187 | cb=owl_editwin_get_callback(e); |
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| 188 | if(!cb) { |
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| 189 | owl_function_error("Internal error: No editwin callback!"); |
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| 190 | } else { |
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[af1920fd] | 191 | /* owl_function_error("text: |%s|", owl_editwin_get_text(e)); */ |
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[e74c01c] | 192 | cb(e); |
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| 193 | } |
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| 194 | } |
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| 195 | |
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[bab52da] | 196 | static int owl_editwin_limit_maxcols(int v, int maxv) |
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[c9334b1] | 197 | { |
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[ebf0128] | 198 | /* maxv > 5 ? MAX(v, vax) : v */ |
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[d36f2cb] | 199 | if (maxv > 5 && v > maxv) { |
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[060b3b4] | 200 | return(maxv); |
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[d36f2cb] | 201 | } else { |
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[060b3b4] | 202 | return(v); |
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[d36f2cb] | 203 | } |
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| 204 | } |
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| 205 | |
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[c9334b1] | 206 | /* set text to be 'locked in' at the beginning of the buffer, any |
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| 207 | * previous text (including locked text) will be overwritten |
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| 208 | */ |
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| 209 | void owl_editwin_set_locktext(owl_editwin *e, char *text) |
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| 210 | { |
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[521bc84] | 211 | oe_set_index(e, 0); |
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[5b5f3e6] | 212 | e->lock = 0; |
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| 213 | owl_editwin_replace(e, e->bufflen, text); |
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| 214 | e->buff[e->bufflen] = 0; |
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| 215 | e->lock=e->bufflen; |
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[521bc84] | 216 | oe_set_index(e, e->lock); |
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[7d4fbcd] | 217 | owl_editwin_redisplay(e, 0); |
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| 218 | } |
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| 219 | |
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[c9334b1] | 220 | int owl_editwin_get_style(owl_editwin *e) |
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| 221 | { |
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[7d4fbcd] | 222 | return(e->style); |
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| 223 | } |
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| 224 | |
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[c9334b1] | 225 | void owl_editwin_new_style(owl_editwin *e, int newstyle, owl_history *h) |
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| 226 | { |
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[98f1e69] | 227 | e->hist = h; |
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| 228 | |
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[7d4fbcd] | 229 | if (e->style==newstyle) return; |
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| 230 | |
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| 231 | if (newstyle==OWL_EDITWIN_STYLE_MULTILINE) { |
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| 232 | e->style=newstyle; |
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| 233 | } else if (newstyle==OWL_EDITWIN_STYLE_ONELINE) { |
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| 234 | e->style=newstyle; |
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| 235 | |
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| 236 | /* nuke everything after the first line */ |
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[5b5f3e6] | 237 | owl_editwin_move_to_top(e); |
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| 238 | owl_editwin_move_to_end_of_line(e); |
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| 239 | owl_editwin_replace(e, oe_count_glyphs(e->buff + e->index), ""); |
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[7d4fbcd] | 240 | } |
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| 241 | } |
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| 242 | |
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[c9334b1] | 243 | /* completly reinitialize the buffer */ |
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| 244 | void owl_editwin_fullclear(owl_editwin *e) |
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| 245 | { |
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[7d4fbcd] | 246 | owl_free(e->buff); |
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[10b866d] | 247 | owl_editwin_init(e, e->curswin, e->winlines, e->wincols, e->style, e->hist); |
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[7d4fbcd] | 248 | } |
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| 249 | |
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[c9334b1] | 250 | /* clear all text except for locktext and put the cursor at the |
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| 251 | * beginning |
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| 252 | */ |
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| 253 | void owl_editwin_clear(owl_editwin *e) |
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| 254 | { |
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| 255 | |
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[6073462] | 256 | int lock = e->lock; |
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[10b866d] | 257 | int dotsend=e->dotsend; |
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[7d4fbcd] | 258 | char *locktext=NULL; |
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[cc6f009] | 259 | char echochar=e->echochar; |
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[10b866d] | 260 | |
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[6073462] | 261 | if (lock > 0) { |
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[5b5f3e6] | 262 | locktext = owl_malloc(lock+1); |
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| 263 | strncpy(locktext, e->buff, lock); |
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| 264 | locktext[lock] = 0; |
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[7d4fbcd] | 265 | } |
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| 266 | |
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| 267 | owl_free(e->buff); |
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[10b866d] | 268 | owl_editwin_init(e, e->curswin, e->winlines, e->wincols, e->style, e->hist); |
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[7d4fbcd] | 269 | |
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| 270 | if (lock > 0) { |
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| 271 | owl_editwin_set_locktext(e, locktext); |
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| 272 | } |
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[10b866d] | 273 | if (dotsend) { |
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| 274 | owl_editwin_set_dotsend(e); |
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| 275 | } |
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[cc6f009] | 276 | if (echochar) { |
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| 277 | owl_editwin_set_echochar(e, echochar); |
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| 278 | } |
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[7d4fbcd] | 279 | |
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[5b5f3e6] | 280 | if (locktext) |
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| 281 | owl_free(locktext); |
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[6073462] | 282 | |
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[521bc84] | 283 | oe_set_index(e, lock); |
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[7d4fbcd] | 284 | } |
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| 285 | |
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[c9334b1] | 286 | void owl_editwin_recenter(owl_editwin *e) |
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| 287 | { |
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[a556caa] | 288 | e->topindex = -1; |
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| 289 | } |
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[e20d8179] | 290 | |
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[a0fbdee] | 291 | static void oe_save_excursion(owl_editwin *e, oe_excursion *x) |
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| 292 | { |
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| 293 | x->index = e->index; |
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| 294 | x->goal_column = e->goal_column; |
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| 295 | x->lock = e->lock; |
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[ebf0128] | 296 | |
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| 297 | x->valid = VALID_EXCURSION; |
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| 298 | x->next = e->excursions; |
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| 299 | e->excursions = x; |
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| 300 | } |
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| 301 | |
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| 302 | static void oe_release_excursion(owl_editwin *e, oe_excursion *x) |
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| 303 | { |
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| 304 | oe_excursion *p; |
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| 305 | |
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| 306 | x->valid = 0; |
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| 307 | if (e->excursions == NULL) |
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| 308 | /* XXX huh. */ ; |
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| 309 | else if (e->excursions == x) |
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| 310 | e->excursions = x->next; |
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| 311 | else { |
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| 312 | for (p = e->excursions; p->next != NULL; p = p->next) |
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| 313 | if (p->next == x) { |
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| 314 | p->next = p->next->next; |
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| 315 | break; |
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| 316 | } |
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| 317 | /* and if we ran off the end? XXX */ |
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| 318 | } |
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[a0fbdee] | 319 | } |
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| 320 | |
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| 321 | static void oe_restore_excursion(owl_editwin *e, oe_excursion *x) |
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| 322 | { |
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[ebf0128] | 323 | if (x->valid == VALID_EXCURSION) { |
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| 324 | oe_set_index(e, x->index); |
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| 325 | e->goal_column = x->goal_column; |
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| 326 | e->lock = x->lock; |
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| 327 | |
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| 328 | oe_release_excursion(e, x); |
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| 329 | } |
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[a0fbdee] | 330 | } |
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| 331 | |
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[e20d8179] | 332 | static inline char *oe_next_point(owl_editwin *e, char *p) |
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| 333 | { |
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| 334 | char *boundary = e->buff + e->bufflen + 1; |
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| 335 | char *q; |
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| 336 | |
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| 337 | q = g_utf8_find_next_char(p, boundary); |
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| 338 | while (q && g_unichar_ismark(g_utf8_get_char(q))) |
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| 339 | q = g_utf8_find_next_char(q, boundary); |
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| 340 | |
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| 341 | if (q == p) |
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| 342 | return NULL; |
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| 343 | return q; |
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| 344 | } |
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| 345 | |
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| 346 | static inline char *oe_prev_point(owl_editwin *e, char *p) |
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| 347 | { |
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| 348 | char *boundary = e->buff + e->lock; |
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| 349 | |
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| 350 | p = g_utf8_find_prev_char(boundary, p); |
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| 351 | while (p && g_unichar_ismark(g_utf8_get_char(p))) |
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| 352 | p = g_utf8_find_prev_char(boundary, p); |
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| 353 | |
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| 354 | return p; |
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| 355 | } |
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| 356 | |
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[ebf0128] | 357 | static int oe_char_width(gunichar c, int column) |
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| 358 | { |
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| 359 | int cw; |
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| 360 | |
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| 361 | if (c == 9) /* TAB */ |
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| 362 | return TABSIZE - column % TABSIZE; |
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| 363 | |
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| 364 | cw = mk_wcwidth(c); |
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| 365 | |
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| 366 | if (cw < 0) /* control characters */ |
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| 367 | cw = 0; |
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| 368 | |
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| 369 | return cw; |
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| 370 | } |
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| 371 | |
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[19f765d] | 372 | static int oe_find_display_line(owl_editwin *e, int *x, int index) |
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| 373 | { |
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| 374 | int width = 0, cw; |
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[ebf0128] | 375 | gunichar c; |
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[19f765d] | 376 | char *p; |
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| 377 | |
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[77d4402] | 378 | while(1) { |
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| 379 | /* note the position of the dot */ |
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[2021bea] | 380 | if (x != NULL && index == e->index && width < e->wincols) |
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[19f765d] | 381 | *x = width; |
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[77d4402] | 382 | |
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[19f765d] | 383 | /* get the current character */ |
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| 384 | c = g_utf8_get_char(e->buff + index); |
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| 385 | |
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| 386 | /* figure out how wide it is */ |
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[ebf0128] | 387 | cw = oe_char_width(c, width); |
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[19f765d] | 388 | |
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[77d4402] | 389 | if (width + cw > e->wincols) { |
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| 390 | if (x != NULL && *x == width) |
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| 391 | *x = -1; |
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[19f765d] | 392 | break; |
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[77d4402] | 393 | } |
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[19f765d] | 394 | width += cw; |
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| 395 | |
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| 396 | if (c == '\n') { |
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[77d4402] | 397 | if (width < e->wincols) |
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| 398 | ++index; /* skip the newline */ |
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[19f765d] | 399 | break; |
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| 400 | } |
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| 401 | |
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| 402 | /* find the next character */ |
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| 403 | p = oe_next_point(e, e->buff + index); |
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| 404 | if (p == NULL) { /* we ran off the end */ |
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| 405 | if (x != NULL && e->index > index) |
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| 406 | *x = width + 1; |
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| 407 | break; |
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| 408 | } |
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| 409 | index = p - e->buff; |
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[cedc95c] | 410 | |
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[19f765d] | 411 | } |
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| 412 | return index; |
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| 413 | } |
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| 414 | |
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[e20d8179] | 415 | static void oe_reframe(owl_editwin *e) { |
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[cedc95c] | 416 | oe_excursion x; |
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| 417 | int goal = e->winlines / 2; |
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| 418 | int index; |
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| 419 | int count = 0; |
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| 420 | int point; |
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| 421 | int n, i; |
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| 422 | int last; |
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| 423 | |
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| 424 | oe_save_excursion(e, &x); |
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| 425 | /* step back line-by-line through the buffer until we have >= goal lines of |
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| 426 | display text */ |
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| 427 | e->lock = 0; /* we can (must) tread on the locktext */ |
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| 428 | |
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| 429 | point = e->index; |
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| 430 | last = -1; |
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| 431 | while (count < goal) { |
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| 432 | index = e->index; |
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| 433 | owl_editwin_move_to_beginning_of_line(e); |
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| 434 | if (last == e->index) |
---|
| 435 | break; |
---|
| 436 | last = e->index; |
---|
| 437 | for (n = 0, i = e->index; i < index; n++) |
---|
| 438 | i = oe_find_display_line(e, NULL, i); |
---|
| 439 | count += n == 0 ? 1 : n; |
---|
| 440 | if (count < goal) |
---|
| 441 | owl_editwin_point_move(e, -1); |
---|
| 442 | } |
---|
| 443 | |
---|
| 444 | e->topindex = e->index; |
---|
[521bc84] | 445 | /* if we overshot, backtrack */ |
---|
| 446 | for (n = 0; n < (count - goal); n++) |
---|
| 447 | e->topindex = oe_find_display_line(e, NULL, e->topindex); |
---|
[cedc95c] | 448 | |
---|
| 449 | oe_restore_excursion(e, &x); |
---|
[7d4fbcd] | 450 | } |
---|
| 451 | |
---|
[c9334b1] | 452 | /* regenerate the text on the curses window */ |
---|
| 453 | /* if update == 1 then do a doupdate(), otherwise do not */ |
---|
| 454 | void owl_editwin_redisplay(owl_editwin *e, int update) |
---|
| 455 | { |
---|
[19f765d] | 456 | int x = -1, y = -1, t; |
---|
[77d4402] | 457 | int line, index, lineindex, times = 0; |
---|
[7d4fbcd] | 458 | |
---|
[bd1a1ae] | 459 | do { |
---|
[cedc95c] | 460 | werase(e->curswin); |
---|
| 461 | |
---|
[bd1a1ae] | 462 | if (e->topindex == -1 || e->index < e->topindex) |
---|
[e20d8179] | 463 | oe_reframe(e); |
---|
| 464 | |
---|
[bd1a1ae] | 465 | line = 0; |
---|
| 466 | index = e->topindex; |
---|
| 467 | while(line < e->winlines) { |
---|
| 468 | lineindex = index; |
---|
[19f765d] | 469 | t = -1; |
---|
| 470 | index = oe_find_display_line(e, &t, lineindex); |
---|
| 471 | if (x == -1 && t != -1) |
---|
| 472 | x = t, y = line; |
---|
[bd1a1ae] | 473 | if (index - lineindex) |
---|
| 474 | mvwaddnstr(e->curswin, line, 0, |
---|
| 475 | e->buff + lineindex, |
---|
| 476 | index - lineindex); |
---|
| 477 | line++; |
---|
[a556caa] | 478 | } |
---|
[19f765d] | 479 | if (x == -1) |
---|
[bd1a1ae] | 480 | e->topindex = -1; /* force a reframe */ |
---|
[77d4402] | 481 | times++; |
---|
| 482 | } while(x == -1 && times < 3); |
---|
[e20d8179] | 483 | |
---|
[19f765d] | 484 | wmove(e->curswin, y, x); |
---|
[ebf0128] | 485 | e->cursorx = x; |
---|
| 486 | |
---|
[7d4fbcd] | 487 | wnoutrefresh(e->curswin); |
---|
[a556caa] | 488 | if (update == 1) |
---|
[7d4fbcd] | 489 | doupdate(); |
---|
| 490 | } |
---|
| 491 | |
---|
[ebf0128] | 492 | /* replace count characters at the point with s, returning the change in size */ |
---|
| 493 | static int owl_editwin_replace(owl_editwin *e, int replace, char *s) |
---|
| 494 | { |
---|
| 495 | int start, end, i, free, need, size, change; |
---|
[5b5f3e6] | 496 | char *p; |
---|
[ebf0128] | 497 | oe_excursion *x; |
---|
[e9bb404] | 498 | |
---|
[5b5f3e6] | 499 | if (!g_utf8_validate(s, -1, NULL)) { |
---|
| 500 | owl_function_debugmsg("owl_editwin_insert_string: received non-utf-8 string."); |
---|
[ebf0128] | 501 | return 0; |
---|
[47519e1b] | 502 | } |
---|
| 503 | |
---|
[5b5f3e6] | 504 | start = e->index; |
---|
| 505 | for (i = 0, p = e->buff + start; i < replace && p != NULL; i++) |
---|
| 506 | p = oe_next_point(e, p); |
---|
| 507 | if (p != NULL) |
---|
| 508 | end = p - e->buff; |
---|
| 509 | else |
---|
| 510 | end = e->bufflen; |
---|
| 511 | |
---|
| 512 | free = e->allocated - e->bufflen + end - start; |
---|
| 513 | |
---|
| 514 | need = strlen(s) - free; |
---|
| 515 | if (need > 0) { |
---|
| 516 | size = e->allocated + need + INCR - (need % INCR); |
---|
| 517 | p = realloc(e->buff, size); |
---|
| 518 | if (p == NULL) { |
---|
| 519 | /* XXX signal impending doom somehow and don't do anything */ |
---|
[ebf0128] | 520 | return 0; |
---|
[e9bb404] | 521 | } |
---|
[5b5f3e6] | 522 | e->buff = p; |
---|
| 523 | e->allocated = size; |
---|
[47519e1b] | 524 | } |
---|
[e9bb404] | 525 | |
---|
[5b5f3e6] | 526 | memmove(e->buff + start + strlen(s), e->buff + end, e->bufflen + 1 - end); |
---|
| 527 | memcpy(e->buff + start, s, strlen(s)); |
---|
[ebf0128] | 528 | change = start - end + strlen(s); |
---|
| 529 | e->bufflen += change; |
---|
[5b5f3e6] | 530 | e->index += strlen(s); |
---|
[ebf0128] | 531 | |
---|
| 532 | /* fix up any saved points after the replaced area */ |
---|
| 533 | for (x = e->excursions; x != NULL; x = x->next) |
---|
| 534 | if (x->index > start) { |
---|
| 535 | if (x->index < end) |
---|
| 536 | x->index = end; |
---|
| 537 | else |
---|
| 538 | x->index += change; |
---|
| 539 | } |
---|
| 540 | |
---|
| 541 | return change; |
---|
[47519e1b] | 542 | } |
---|
| 543 | |
---|
[5b5f3e6] | 544 | #if 0 /*XXX*/ |
---|
[c9334b1] | 545 | /* linewrap the word just before the cursor. |
---|
| 546 | * returns 0 on success |
---|
| 547 | * returns -1 if we could not wrap. |
---|
| 548 | */ |
---|
[5b5f3e6] | 549 | static int _owl_editwin_linewrap_word(owl_editwin *e) |
---|
[c9334b1] | 550 | { |
---|
[84027015] | 551 | int i; |
---|
| 552 | char *ptr1, *start; |
---|
| 553 | gunichar c; |
---|
[7d4fbcd] | 554 | |
---|
[84027015] | 555 | start = e->buff + e->lock; |
---|
| 556 | |
---|
[a556caa] | 557 | ptr1 = e->buff + e->index; |
---|
[84027015] | 558 | ptr1 = g_utf8_find_prev_char(start, ptr1); |
---|
| 559 | |
---|
| 560 | while (ptr1) { |
---|
| 561 | c = g_utf8_get_char(ptr1); |
---|
| 562 | if (owl_util_can_break_after(c)) { |
---|
| 563 | if (c != ' ') { |
---|
| 564 | i = ptr1 - e->buff; |
---|
[521bc84] | 565 | oe_set_index(e, i); |
---|
[b2c1bd4] | 566 | _owl_editwin_insert_bytes(e, 1); |
---|
| 567 | /* _owl_editwin_insert_bytes may move e->buff. */ |
---|
[84027015] | 568 | ptr1 = e->buff + i; |
---|
| 569 | } |
---|
| 570 | *ptr1 = '\n'; |
---|
| 571 | return 0; |
---|
[7d4fbcd] | 572 | } |
---|
[2d4ff14] | 573 | else if (c == '\n') { |
---|
| 574 | return 0; |
---|
| 575 | } |
---|
[84027015] | 576 | ptr1 = g_utf8_find_prev_char(start, ptr1); |
---|
[7d4fbcd] | 577 | } |
---|
[84027015] | 578 | return -1; |
---|
[7d4fbcd] | 579 | } |
---|
[a556caa] | 580 | #endif |
---|
[7d4fbcd] | 581 | |
---|
[c9334b1] | 582 | /* delete the character at the current point, following chars |
---|
| 583 | * shift left. |
---|
[e20d8179] | 584 | */ |
---|
[c9334b1] | 585 | void owl_editwin_delete_char(owl_editwin *e) |
---|
| 586 | { |
---|
[5b5f3e6] | 587 | owl_editwin_replace(e, 1, ""); |
---|
[7d4fbcd] | 588 | } |
---|
| 589 | |
---|
[c9334b1] | 590 | /* Swap the character at point with the character at point-1 and |
---|
| 591 | * advance the pointer. If point is at beginning of buffer do |
---|
| 592 | * nothing. If point is after the last character swap point-1 with |
---|
[e20d8179] | 593 | * point-2. (Behaves as observed in tcsh and emacs). |
---|
[c9334b1] | 594 | */ |
---|
| 595 | void owl_editwin_transpose_chars(owl_editwin *e) |
---|
| 596 | { |
---|
[5b5f3e6] | 597 | char *middle, *end, *start, *tmp; |
---|
[f2e36b5] | 598 | |
---|
[47519e1b] | 599 | if (e->bufflen == 0) return; |
---|
[e20d8179] | 600 | |
---|
[5b5f3e6] | 601 | if (e->index == e->bufflen) |
---|
| 602 | owl_editwin_point_move(e, -1); /* point is after last character */ |
---|
[f2e36b5] | 603 | |
---|
[5b5f3e6] | 604 | if (owl_editwin_at_beginning_of_buffer(e)) |
---|
| 605 | return; /* point is at beginning of buffer, do nothing */ |
---|
[f2e36b5] | 606 | |
---|
[47519e1b] | 607 | /* Transpose two utf-8 unicode glyphs. */ |
---|
[5b5f3e6] | 608 | middle = e->buff + e->index; |
---|
[47519e1b] | 609 | |
---|
[5b5f3e6] | 610 | end = oe_next_point(e, middle); |
---|
| 611 | if (end == NULL) |
---|
[e20d8179] | 612 | return; |
---|
[47519e1b] | 613 | |
---|
[5b5f3e6] | 614 | start = oe_prev_point(e, middle); |
---|
| 615 | if (start == NULL) |
---|
[e20d8179] | 616 | return; |
---|
[47519e1b] | 617 | |
---|
[5b5f3e6] | 618 | tmp = owl_malloc((end - start) + 1); |
---|
| 619 | tmp[(end - start)] = 0; |
---|
| 620 | memcpy(tmp, middle, end - middle); |
---|
| 621 | memcpy(tmp + (end - middle), start, middle - start); |
---|
| 622 | |
---|
| 623 | owl_editwin_point_move(e, -1); |
---|
| 624 | owl_editwin_replace(e, 2, tmp); |
---|
[f2e36b5] | 625 | } |
---|
| 626 | |
---|
[c9334b1] | 627 | /* insert 'string' at the current point, later text is shifted |
---|
| 628 | * right |
---|
| 629 | */ |
---|
[5b5f3e6] | 630 | void owl_editwin_insert_string(owl_editwin *e, char *s) |
---|
[c9334b1] | 631 | { |
---|
[5b5f3e6] | 632 | owl_editwin_replace(e, 0, s); |
---|
[7d4fbcd] | 633 | } |
---|
| 634 | |
---|
[a556caa] | 635 | /* We assume index is not set to point to a mid-char */ |
---|
[bab52da] | 636 | static gunichar owl_editwin_get_char_at_point(owl_editwin *e) |
---|
[c9334b1] | 637 | { |
---|
[a556caa] | 638 | return g_utf8_get_char(e->buff + e->index); |
---|
| 639 | } |
---|
[7d4fbcd] | 640 | |
---|
[e20d8179] | 641 | int owl_editwin_point_move(owl_editwin *e, int delta) |
---|
[84027015] | 642 | { |
---|
[e20d8179] | 643 | char *p; |
---|
[19f765d] | 644 | int change, d = 0; |
---|
[a556caa] | 645 | |
---|
| 646 | change = MAX(delta, - delta); |
---|
| 647 | p = e->buff + e->index; |
---|
| 648 | |
---|
| 649 | while (d < change && p != NULL) { |
---|
[e20d8179] | 650 | if (delta > 0) |
---|
| 651 | p = oe_next_point(e, p); |
---|
| 652 | else |
---|
| 653 | p = oe_prev_point(e, p); |
---|
| 654 | if (p != NULL) { |
---|
[521bc84] | 655 | oe_set_index(e, p - e->buff); |
---|
[e20d8179] | 656 | d++; |
---|
[a556caa] | 657 | } |
---|
| 658 | } |
---|
| 659 | |
---|
| 660 | return delta > 0 ? d : -d; |
---|
[84027015] | 661 | } |
---|
| 662 | |
---|
[a556caa] | 663 | int owl_editwin_at_beginning_of_buffer(owl_editwin *e) { |
---|
| 664 | if (e->index == e->lock) |
---|
| 665 | return 1; |
---|
[84027015] | 666 | |
---|
[a556caa] | 667 | return 0; |
---|
| 668 | } |
---|
| 669 | |
---|
| 670 | int owl_at_end_of_buffer(owl_editwin *e) { |
---|
| 671 | if (e->index == e->bufflen) |
---|
| 672 | return 1; |
---|
| 673 | |
---|
| 674 | return 0; |
---|
| 675 | } |
---|
| 676 | |
---|
| 677 | int owl_editwin_at_beginning_of_line(owl_editwin *e) /*noproto*/ |
---|
[c9334b1] | 678 | { |
---|
[a0fbdee] | 679 | oe_excursion x; |
---|
[a556caa] | 680 | int ret; |
---|
[47519e1b] | 681 | |
---|
[a556caa] | 682 | if (owl_editwin_at_beginning_of_buffer(e)) |
---|
| 683 | return 1; |
---|
[47519e1b] | 684 | |
---|
[a0fbdee] | 685 | oe_save_excursion(e, &x); |
---|
[a556caa] | 686 | owl_editwin_point_move(e, -1); |
---|
[bab52da] | 687 | ret = (owl_editwin_get_char_at_point(e) == '\n'); |
---|
[a0fbdee] | 688 | oe_restore_excursion(e, &x); |
---|
[a556caa] | 689 | |
---|
| 690 | return ret; |
---|
| 691 | } |
---|
| 692 | |
---|
[e20d8179] | 693 | static int owl_editwin_is_char_in(owl_editwin *e, char *set) |
---|
[a556caa] | 694 | { |
---|
| 695 | char *p; |
---|
[5b5f3e6] | 696 | |
---|
| 697 | for (p = set; *p != 0; p = g_utf8_find_next_char(p, NULL)) |
---|
| 698 | if (owl_editwin_get_char_at_point(e) == g_utf8_get_char(p)) |
---|
[a556caa] | 699 | return 1; |
---|
| 700 | return 0; |
---|
| 701 | } |
---|
| 702 | |
---|
[e20d8179] | 703 | int owl_editwin_move_if_in(owl_editwin *e, int delta, char *set) |
---|
[a556caa] | 704 | { |
---|
| 705 | int change, distance = 0; |
---|
[e20d8179] | 706 | while (owl_editwin_is_char_in(e, set)) { |
---|
[a556caa] | 707 | change = owl_editwin_point_move(e, delta); |
---|
| 708 | distance += change; |
---|
| 709 | if (change == 0) |
---|
| 710 | break; |
---|
[47519e1b] | 711 | } |
---|
[a556caa] | 712 | return distance; |
---|
| 713 | } |
---|
| 714 | |
---|
[e20d8179] | 715 | int owl_editwin_move_if_not_in(owl_editwin *e, int delta, char *set) |
---|
[a556caa] | 716 | { |
---|
| 717 | int change, distance = 0; |
---|
[e20d8179] | 718 | while (!owl_editwin_is_char_in(e, set)) { |
---|
[a556caa] | 719 | change = owl_editwin_point_move(e, delta); |
---|
| 720 | distance += change; |
---|
| 721 | if (change == 0) |
---|
| 722 | break; |
---|
[7d4fbcd] | 723 | } |
---|
[a556caa] | 724 | return distance; |
---|
[7d4fbcd] | 725 | } |
---|
| 726 | |
---|
[e20d8179] | 727 | int owl_editwin_move_to_beginning_of_line(owl_editwin *e) |
---|
[47519e1b] | 728 | { |
---|
[a556caa] | 729 | int distance = 0; |
---|
[47519e1b] | 730 | |
---|
[a556caa] | 731 | if (!owl_editwin_at_beginning_of_line(e)) { |
---|
| 732 | /* move off the \n if were at the end of a line */ |
---|
| 733 | distance += owl_editwin_point_move(e, -1); |
---|
| 734 | distance += owl_editwin_move_if_not_in(e, -1, "\n"); |
---|
| 735 | if (distance && !owl_editwin_at_beginning_of_buffer(e)) |
---|
| 736 | distance += owl_editwin_point_move(e, 1); |
---|
[47519e1b] | 737 | } |
---|
[77d4402] | 738 | e->goal_column = 0; /* subtleties */ |
---|
[84027015] | 739 | |
---|
[a556caa] | 740 | return distance; |
---|
| 741 | } |
---|
[e20d8179] | 742 | |
---|
| 743 | int owl_editwin_move_to_end_of_line(owl_editwin *e) |
---|
[a556caa] | 744 | { |
---|
| 745 | return owl_editwin_move_if_not_in(e, 1, "\n"); |
---|
[47519e1b] | 746 | } |
---|
| 747 | |
---|
[e20d8179] | 748 | int owl_editwin_line_move(owl_editwin *e, int delta) |
---|
[c9334b1] | 749 | { |
---|
[d7043b4] | 750 | int goal_column, change, ll, distance; |
---|
| 751 | int count = 0; |
---|
[a556caa] | 752 | |
---|
| 753 | change = MAX(delta, -delta); |
---|
| 754 | |
---|
[d7043b4] | 755 | goal_column = e->goal_column; |
---|
| 756 | distance = owl_editwin_move_to_beginning_of_line(e); |
---|
| 757 | goal_column = goal_column == -1 ? -distance : goal_column; |
---|
[a556caa] | 758 | |
---|
| 759 | while(count < change) { |
---|
| 760 | if (delta > 0) { |
---|
| 761 | distance += owl_editwin_move_if_not_in(e, 1, "\n"); |
---|
| 762 | distance += owl_editwin_point_move(e, 1); |
---|
| 763 | } else { |
---|
| 764 | /* I really want to assert delta < 0 here */ |
---|
| 765 | distance += owl_editwin_point_move(e, -1); /* to the newline on |
---|
| 766 | the previous line */ |
---|
| 767 | distance += owl_editwin_move_to_beginning_of_line(e); |
---|
| 768 | } |
---|
| 769 | count++; |
---|
[7d4fbcd] | 770 | } |
---|
[a556caa] | 771 | |
---|
| 772 | distance += (ll = owl_editwin_move_to_end_of_line(e)); |
---|
| 773 | if (ll > goal_column) |
---|
| 774 | distance += owl_editwin_point_move(e, goal_column - ll); |
---|
| 775 | |
---|
| 776 | e->goal_column = goal_column; |
---|
| 777 | |
---|
| 778 | return distance; |
---|
[7d4fbcd] | 779 | } |
---|
| 780 | |
---|
[c9334b1] | 781 | void owl_editwin_backspace(owl_editwin *e) |
---|
| 782 | { |
---|
[7d4fbcd] | 783 | /* delete the char before the current one |
---|
| 784 | * and shift later chars left |
---|
| 785 | */ |
---|
[a556caa] | 786 | if(owl_editwin_point_move(e, -1)) |
---|
[7d4fbcd] | 787 | owl_editwin_delete_char(e); |
---|
| 788 | } |
---|
| 789 | |
---|
[c9334b1] | 790 | void owl_editwin_key_up(owl_editwin *e) |
---|
| 791 | { |
---|
[a556caa] | 792 | owl_editwin_line_move(e, -1); |
---|
[7d4fbcd] | 793 | } |
---|
| 794 | |
---|
[c9334b1] | 795 | void owl_editwin_key_down(owl_editwin *e) |
---|
| 796 | { |
---|
[a556caa] | 797 | owl_editwin_line_move(e, 1); |
---|
[7d4fbcd] | 798 | } |
---|
| 799 | |
---|
[c9334b1] | 800 | void owl_editwin_key_left(owl_editwin *e) |
---|
| 801 | { |
---|
[a556caa] | 802 | owl_editwin_point_move(e, -1); |
---|
[7d4fbcd] | 803 | } |
---|
| 804 | |
---|
[c9334b1] | 805 | void owl_editwin_key_right(owl_editwin *e) |
---|
| 806 | { |
---|
[a556caa] | 807 | owl_editwin_point_move(e, 1); |
---|
[7d4fbcd] | 808 | } |
---|
| 809 | |
---|
[5b5f3e6] | 810 | int owl_editwin_forward_word(owl_editwin *e) |
---|
[c9334b1] | 811 | { |
---|
[5b5f3e6] | 812 | int distance; |
---|
[7d4fbcd] | 813 | /* if we're starting on a space, find the first non-space */ |
---|
[5b5f3e6] | 814 | distance = owl_editwin_move_if_in(e, 1, WHITESPACE); |
---|
[7d4fbcd] | 815 | |
---|
[a556caa] | 816 | /* now find the end of this word */ |
---|
[5b5f3e6] | 817 | distance += owl_editwin_move_if_not_in(e, 1, WHITESPACE); |
---|
| 818 | |
---|
| 819 | return distance; |
---|
| 820 | } |
---|
| 821 | |
---|
| 822 | void owl_editwin_move_to_nextword(owl_editwin *e) |
---|
| 823 | { |
---|
| 824 | owl_editwin_forward_word(e); |
---|
[7d4fbcd] | 825 | } |
---|
| 826 | |
---|
[c9334b1] | 827 | /* go backwards to the last non-space character |
---|
| 828 | */ |
---|
[5b5f3e6] | 829 | int owl_editwin_backward_word(owl_editwin *e) |
---|
[c9334b1] | 830 | { |
---|
[a0fbdee] | 831 | oe_excursion x; |
---|
[5b5f3e6] | 832 | int distance = 0; |
---|
| 833 | int further = 0; |
---|
[a556caa] | 834 | int beginning; |
---|
| 835 | /* if in middle of word, beginning of word */ |
---|
| 836 | |
---|
| 837 | /* if at beginning of a word, find beginning of previous word */ |
---|
| 838 | |
---|
[e20d8179] | 839 | if (owl_editwin_is_char_in(e, WHITESPACE)) { |
---|
[a556caa] | 840 | /* if in whitespace past end of word, find a word , the find the beginning*/ |
---|
[5b5f3e6] | 841 | distance += owl_editwin_move_if_in(e, -1, WHITESPACE); /* leaves us on the last |
---|
| 842 | character of the word */ |
---|
[a0fbdee] | 843 | oe_save_excursion(e, &x); |
---|
[a556caa] | 844 | /* are we at the beginning of a word? */ |
---|
| 845 | owl_editwin_point_move(e, -1); |
---|
[e20d8179] | 846 | beginning = owl_editwin_is_char_in(e, WHITESPACE); |
---|
[a0fbdee] | 847 | oe_restore_excursion(e, &x); |
---|
[a556caa] | 848 | if (beginning) |
---|
[5b5f3e6] | 849 | return distance; |
---|
[a556caa] | 850 | } else { |
---|
| 851 | /* in the middle of the word; */ |
---|
[a0fbdee] | 852 | oe_save_excursion(e, &x); |
---|
[5b5f3e6] | 853 | further += owl_editwin_point_move(e, -1); |
---|
[e20d8179] | 854 | if (owl_editwin_is_char_in(e, WHITESPACE)) { /* we were at the beginning */ |
---|
[5b5f3e6] | 855 | distance += owl_editwin_backward_word(e); /* previous case */ |
---|
| 856 | return distance + further; |
---|
[a556caa] | 857 | } else { |
---|
[a0fbdee] | 858 | oe_restore_excursion(e, &x); |
---|
[7d4fbcd] | 859 | } |
---|
| 860 | } |
---|
[5b5f3e6] | 861 | distance += owl_editwin_move_if_not_in(e, -1, WHITESPACE); |
---|
[a556caa] | 862 | /* will go past */ |
---|
| 863 | if (e->index > e->lock) |
---|
[5b5f3e6] | 864 | distance += owl_editwin_point_move(e, 1); |
---|
| 865 | return distance; |
---|
| 866 | } |
---|
| 867 | |
---|
| 868 | void owl_editwin_move_to_previousword(owl_editwin *e) |
---|
| 869 | { |
---|
| 870 | owl_editwin_backward_word(e); |
---|
[7d4fbcd] | 871 | } |
---|
| 872 | |
---|
[c9334b1] | 873 | void owl_editwin_delete_nextword(owl_editwin *e) |
---|
| 874 | { |
---|
[a0fbdee] | 875 | oe_excursion x; |
---|
[5b5f3e6] | 876 | int distance; |
---|
[a556caa] | 877 | |
---|
[a0fbdee] | 878 | oe_save_excursion(e, &x); |
---|
[5b5f3e6] | 879 | distance = owl_editwin_forward_word(e); |
---|
[a0fbdee] | 880 | oe_restore_excursion(e, &x); |
---|
[5b5f3e6] | 881 | owl_editwin_replace(e, distance, ""); |
---|
[7d4fbcd] | 882 | } |
---|
| 883 | |
---|
[c9334b1] | 884 | void owl_editwin_delete_previousword(owl_editwin *e) |
---|
| 885 | { |
---|
[b68f9cd] | 886 | /* go backwards to the last non-space character, then delete chars */ |
---|
[5b5f3e6] | 887 | int distance; |
---|
[b68f9cd] | 888 | |
---|
[5b5f3e6] | 889 | distance = owl_editwin_backward_word(e); |
---|
| 890 | owl_editwin_replace(e, -distance, ""); |
---|
[b68f9cd] | 891 | } |
---|
| 892 | |
---|
[a556caa] | 893 | void owl_editwin_move_to_line_end(owl_editwin *e) |
---|
[c9334b1] | 894 | { |
---|
[a556caa] | 895 | owl_editwin_move_to_end_of_line(e); |
---|
[7d4fbcd] | 896 | } |
---|
| 897 | |
---|
[a556caa] | 898 | void owl_editwin_delete_to_endofline(owl_editwin *e) |
---|
[c9334b1] | 899 | { |
---|
[a0fbdee] | 900 | oe_excursion x; |
---|
[5b5f3e6] | 901 | int distance; |
---|
[a556caa] | 902 | |
---|
[a0fbdee] | 903 | oe_save_excursion(e, &x); |
---|
[5b5f3e6] | 904 | distance = owl_editwin_move_to_end_of_line(e); |
---|
[a0fbdee] | 905 | oe_restore_excursion(e, &x); |
---|
[5b5f3e6] | 906 | owl_editwin_replace(e, distance ? distance : 1, ""); |
---|
[7d4fbcd] | 907 | } |
---|
| 908 | |
---|
[c9334b1] | 909 | void owl_editwin_move_to_line_start(owl_editwin *e) |
---|
| 910 | { |
---|
[a556caa] | 911 | owl_editwin_move_to_beginning_of_line(e); |
---|
[7d4fbcd] | 912 | } |
---|
| 913 | |
---|
[c9334b1] | 914 | void owl_editwin_move_to_end(owl_editwin *e) |
---|
| 915 | { |
---|
[521bc84] | 916 | oe_set_index(e, e->bufflen); |
---|
[7d4fbcd] | 917 | } |
---|
| 918 | |
---|
[c9334b1] | 919 | void owl_editwin_move_to_top(owl_editwin *e) |
---|
| 920 | { |
---|
[521bc84] | 921 | oe_set_index(e, e->lock); |
---|
[7d4fbcd] | 922 | } |
---|
| 923 | |
---|
[c9334b1] | 924 | void owl_editwin_fill_paragraph(owl_editwin *e) |
---|
| 925 | { |
---|
[a556caa] | 926 | #if 0 /* XXX */ |
---|
[a0fbdee] | 927 | oe_excursion x; |
---|
[7d4fbcd] | 928 | int i, save; |
---|
| 929 | |
---|
| 930 | /* save our starting point */ |
---|
[a0fbdee] | 931 | oe_save_excursion(e, &x); |
---|
[a556caa] | 932 | |
---|
| 933 | save = e->index; |
---|
[7d4fbcd] | 934 | |
---|
| 935 | /* scan back to the beginning of this paragraph */ |
---|
| 936 | for (i=save; i>=e->lock; i--) { |
---|
| 937 | if ( (i<=e->lock) || |
---|
| 938 | ((e->buff[i]=='\n') && (e->buff[i-1]=='\n'))) { |
---|
[521bc84] | 939 | oe_set_index(i + 1); |
---|
[7d4fbcd] | 940 | break; |
---|
| 941 | } |
---|
| 942 | } |
---|
| 943 | |
---|
| 944 | /* main loop */ |
---|
| 945 | while (1) { |
---|
[47519e1b] | 946 | i = _owl_editwin_get_index_from_xy(e); |
---|
[7d4fbcd] | 947 | |
---|
| 948 | /* bail if we hit the end of the buffer */ |
---|
[47519e1b] | 949 | if (i >= e->bufflen || e->buff[i] == '\0') break; |
---|
[7d4fbcd] | 950 | |
---|
| 951 | /* bail if we hit the end of the paragraph */ |
---|
[47519e1b] | 952 | if (e->buff[i] == '\n' && e->buff[i+1] == '\n') break; |
---|
[7d4fbcd] | 953 | |
---|
[50e671c] | 954 | /* bail if we hit a trailing dot on the buffer */ |
---|
| 955 | if (e->buff[i] == '\n' && e->buff[i+1] == '.' |
---|
| 956 | && ((i+2) >= e->bufflen || e->buff[i+2] == '\0')) |
---|
| 957 | break; |
---|
| 958 | |
---|
[7d4fbcd] | 959 | /* if we've travelled too far, linewrap */ |
---|
| 960 | if ((e->buffx) >= e->fillcol) { |
---|
[b2c1bd4] | 961 | int len = e->bufflen; |
---|
[7d4fbcd] | 962 | _owl_editwin_linewrap_word(e); |
---|
[b2c1bd4] | 963 | /* we may have added a character. */ |
---|
| 964 | if (i < save) save += e->bufflen - len; |
---|
[521bc84] | 965 | oe_set_index(i); |
---|
[7d4fbcd] | 966 | } |
---|
| 967 | |
---|
| 968 | /* did we hit the end of a line too soon? */ |
---|
[84027015] | 969 | /* asedeno: Here we replace a newline with a space. We may want to |
---|
| 970 | consider removing the space if the characters to either side |
---|
| 971 | are CJK ideograms.*/ |
---|
[47519e1b] | 972 | i = _owl_editwin_get_index_from_xy(e); |
---|
| 973 | if (e->buff[i] == '\n' && e->buffx < e->fillcol - 1) { |
---|
[7d4fbcd] | 974 | /* ********* we need to make sure we don't pull in a word that's too long ***********/ |
---|
| 975 | e->buff[i]=' '; |
---|
| 976 | } |
---|
[b2c1bd4] | 977 | |
---|
[7d4fbcd] | 978 | /* fix spacing */ |
---|
[47519e1b] | 979 | i = _owl_editwin_get_index_from_xy(e); |
---|
| 980 | if (e->buff[i] == ' ' && e->buff[i+1] == ' ') { |
---|
| 981 | if (e->buff[i-1] == '.' || e->buff[i-1] == '!' || e->buff[i-1] == '?') { |
---|
[7d4fbcd] | 982 | owl_editwin_key_right(e); |
---|
| 983 | } else { |
---|
| 984 | owl_editwin_delete_char(e); |
---|
[84027015] | 985 | /* if we did this ahead of the save point, adjust it. Changing |
---|
| 986 | by one is fine here because we're only removing an ASCII |
---|
| 987 | space. */ |
---|
[47519e1b] | 988 | if (i < save) save--; |
---|
[7d4fbcd] | 989 | } |
---|
| 990 | } else { |
---|
| 991 | owl_editwin_key_right(e); |
---|
| 992 | } |
---|
| 993 | } |
---|
| 994 | |
---|
| 995 | /* put cursor back at starting point */ |
---|
[a0fbdee] | 996 | oe_restore_excursion(e, &x); |
---|
[a556caa] | 997 | #endif |
---|
[7d4fbcd] | 998 | } |
---|
| 999 | |
---|
[cf83b7a] | 1000 | /* returns true if only whitespace remains */ |
---|
[c9334b1] | 1001 | int owl_editwin_is_at_end(owl_editwin *e) |
---|
| 1002 | { |
---|
[a556caa] | 1003 | return (only_whitespace(e->buff + e->index)); |
---|
[217a43e] | 1004 | } |
---|
| 1005 | |
---|
[bab52da] | 1006 | static int owl_editwin_check_dotsend(owl_editwin *e) |
---|
[c9334b1] | 1007 | { |
---|
[47519e1b] | 1008 | char *p, *p_n, *p_p; |
---|
| 1009 | gunichar c; |
---|
[7d4fbcd] | 1010 | |
---|
| 1011 | if (!e->dotsend) return(0); |
---|
[47519e1b] | 1012 | |
---|
| 1013 | p = g_utf8_find_prev_char(e->buff, e->buff + e->bufflen); |
---|
| 1014 | p_n = g_utf8_find_next_char(p, NULL); |
---|
| 1015 | p_p = g_utf8_find_prev_char(e->buff, p); |
---|
| 1016 | c = g_utf8_get_char(p); |
---|
| 1017 | while (p != NULL) { |
---|
| 1018 | if (*p == '.' |
---|
| 1019 | && p_p != NULL && (*p_p == '\n' || *p_p == '\r') |
---|
| 1020 | && p_n != NULL && (*p_n == '\n' || *p_n == '\r')) { |
---|
| 1021 | e->bufflen = p - e->buff; |
---|
| 1022 | e->buff[e->bufflen] = '\0'; |
---|
[7d4fbcd] | 1023 | return(1); |
---|
| 1024 | } |
---|
[47519e1b] | 1025 | if (c != '\0' && !g_unichar_isspace(c)) return(0); |
---|
| 1026 | p_n = p; |
---|
| 1027 | p = p_p; |
---|
| 1028 | c = g_utf8_get_char(p); |
---|
| 1029 | p_p = g_utf8_find_prev_char(e->buff, p); |
---|
[7d4fbcd] | 1030 | } |
---|
| 1031 | return(0); |
---|
| 1032 | } |
---|
| 1033 | |
---|
[fac5463] | 1034 | void owl_editwin_post_process_char(owl_editwin *e, owl_input j) |
---|
[c9334b1] | 1035 | { |
---|
[a556caa] | 1036 | /* XXX force a redisplay? */ |
---|
[fac5463] | 1037 | if ((j.ch==13 || j.ch==10) && owl_editwin_check_dotsend(e)) { |
---|
[7d4fbcd] | 1038 | owl_command_editmulti_done(e); |
---|
| 1039 | return; |
---|
| 1040 | } |
---|
[e20d8179] | 1041 | owl_editwin_redisplay(e, 0); |
---|
[7d4fbcd] | 1042 | } |
---|
| 1043 | |
---|
[ebf0128] | 1044 | static void oe_insert_char(owl_editwin *e, gunichar c) |
---|
[fac5463] | 1045 | { |
---|
[5b5f3e6] | 1046 | char tmp[7]; |
---|
| 1047 | |
---|
[ebf0128] | 1048 | if (c == '\r') /* translate CRs to NLs */ |
---|
| 1049 | c = '\n'; |
---|
| 1050 | |
---|
| 1051 | if (!g_unichar_iscntrl(c) || c == '\n' || c== '\n' ) { |
---|
| 1052 | memset(tmp, 0, 7); |
---|
| 1053 | |
---|
| 1054 | if (c == '\n' && e->style == OWL_EDITWIN_STYLE_ONELINE) { |
---|
| 1055 | return; |
---|
| 1056 | } |
---|
| 1057 | |
---|
| 1058 | g_unichar_to_utf8(c, tmp); |
---|
| 1059 | owl_editwin_replace(e, 0, tmp); |
---|
| 1060 | } |
---|
| 1061 | } |
---|
| 1062 | |
---|
| 1063 | void owl_editwin_process_char(owl_editwin *e, owl_input j) |
---|
| 1064 | { |
---|
[5b5f3e6] | 1065 | if (j.ch == ERR) |
---|
| 1066 | return; |
---|
[fac5463] | 1067 | /* Ignore ncurses control characters. */ |
---|
[e20d8179] | 1068 | if (j.ch < 0x100) { |
---|
[ebf0128] | 1069 | oe_insert_char(e, j.uch); |
---|
[fac5463] | 1070 | } |
---|
| 1071 | } |
---|
| 1072 | |
---|
[c9334b1] | 1073 | char *owl_editwin_get_text(owl_editwin *e) |
---|
| 1074 | { |
---|
[7d4fbcd] | 1075 | return(e->buff+e->lock); |
---|
| 1076 | } |
---|
| 1077 | |
---|
[a556caa] | 1078 | int owl_editwin_get_echochar(owl_editwin *e) { |
---|
| 1079 | return e->echochar; |
---|
| 1080 | } |
---|
[2f21a41] | 1081 | |
---|
| 1082 | |
---|
| 1083 | /* |
---|
| 1084 | * Local Variables: |
---|
| 1085 | * mode:C |
---|
| 1086 | * c-basic-offset:2 |
---|
| 1087 | * End: |
---|
| 1088 | */ |
---|