[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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[a556caa] | 9 | struct _owl_editwin { /*noproto*/ |
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| 10 | char *buff; |
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| 11 | owl_history *hist; |
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| 12 | int bufflen; |
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| 13 | int allocated; |
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| 14 | int index; |
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| 15 | int goal_column; |
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| 16 | int topindex; |
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| 17 | int winlines, wincols, fillcol, wrapcol; |
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| 18 | WINDOW *curswin; |
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| 19 | int style; |
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| 20 | int lock; |
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| 21 | int dotsend; |
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| 22 | int echochar; |
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| 23 | |
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| 24 | char *command; |
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| 25 | void (*callback)(struct _owl_editwin*); |
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| 26 | void *cbdata; |
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| 27 | }; |
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| 28 | |
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| 29 | typedef struct { /*noproto*/ |
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| 30 | int index; |
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| 31 | int goal_column; |
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| 32 | } _owl_editwin_excursion; |
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| 33 | |
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[7d4fbcd] | 34 | #define INCR 5000 |
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| 35 | |
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[a556caa] | 36 | #define WHITESPACE " \n\t" |
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| 37 | |
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| 38 | owl_editwin *owl_editwin_allocate(void) { |
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| 39 | return owl_malloc(sizeof(owl_editwin)); |
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| 40 | } |
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| 41 | |
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[cf83b7a] | 42 | /* initialize the editwin e. |
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| 43 | * 'win' is an already initialzed curses window that will be used by editwin |
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| 44 | */ |
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[c9334b1] | 45 | void owl_editwin_init(owl_editwin *e, WINDOW *win, int winlines, int wincols, int style, owl_history *hist) |
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| 46 | { |
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[10b866d] | 47 | e->buff=owl_malloc(INCR); |
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[7d4fbcd] | 48 | e->buff[0]='\0'; |
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| 49 | e->bufflen=0; |
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[10b866d] | 50 | e->hist=hist; |
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[7d4fbcd] | 51 | e->allocated=INCR; |
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[a556caa] | 52 | e->index = 0; |
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| 53 | e->goal_column = -1; |
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| 54 | e->topindex=0; |
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[7d4fbcd] | 55 | e->winlines=winlines; |
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| 56 | e->wincols=wincols; |
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[9a6cc40] | 57 | e->fillcol=owl_editwin_limit_maxcols(wincols-7, owl_global_get_edit_maxfillcols(&g)); |
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| 58 | e->wrapcol=owl_editwin_limit_maxcols(wincols-7, owl_global_get_edit_maxwrapcols(&g)); |
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[7d4fbcd] | 59 | e->curswin=win; |
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| 60 | e->style=style; |
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| 61 | if ((style!=OWL_EDITWIN_STYLE_MULTILINE) && |
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| 62 | (style!=OWL_EDITWIN_STYLE_ONELINE)) { |
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| 63 | e->style=OWL_EDITWIN_STYLE_MULTILINE; |
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| 64 | } |
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| 65 | e->lock=0; |
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| 66 | e->dotsend=0; |
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[c9334b1] | 67 | e->echochar='\0'; |
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[e74c01c] | 68 | |
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[af1920fd] | 69 | /* We get initialized multiple times, but we need to hold on to |
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| 70 | the callbacks, so we can't NULL them here. */ |
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[e74c01c] | 71 | /* |
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| 72 | e->command = NULL; |
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| 73 | e->callback = NULL; |
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| 74 | e->cbdata = NULL; |
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| 75 | */ |
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[7d4fbcd] | 76 | if (win) werase(win); |
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| 77 | } |
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| 78 | |
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[c9334b1] | 79 | void owl_editwin_set_curswin(owl_editwin *e, WINDOW *w, int winlines, int wincols) |
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| 80 | { |
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[7d4fbcd] | 81 | e->curswin=w; |
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| 82 | e->winlines=winlines; |
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| 83 | e->wincols=wincols; |
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[9a6cc40] | 84 | e->fillcol=owl_editwin_limit_maxcols(wincols-7, owl_global_get_edit_maxfillcols(&g)); |
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| 85 | e->wrapcol=owl_editwin_limit_maxcols(wincols-7, owl_global_get_edit_maxwrapcols(&g)); |
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[7d4fbcd] | 86 | } |
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| 87 | |
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[c9334b1] | 88 | /* echo the character 'ch' for each normal character keystroke, |
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| 89 | * excepting locktext. This is useful for entering passwords etc. If |
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| 90 | * ch=='\0' characters are echo'd normally |
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| 91 | */ |
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| 92 | void owl_editwin_set_echochar(owl_editwin *e, int ch) |
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| 93 | { |
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| 94 | e->echochar=ch; |
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| 95 | } |
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| 96 | |
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| 97 | WINDOW *owl_editwin_get_curswin(owl_editwin *e) |
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| 98 | { |
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[060b3b4] | 99 | return(e->curswin); |
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[7d4fbcd] | 100 | } |
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| 101 | |
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[c9334b1] | 102 | void owl_editwin_set_history(owl_editwin *e, owl_history *h) |
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| 103 | { |
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[060b3b4] | 104 | e->hist=h; |
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[10b866d] | 105 | } |
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| 106 | |
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[c9334b1] | 107 | owl_history *owl_editwin_get_history(owl_editwin *e) |
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| 108 | { |
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[060b3b4] | 109 | return(e->hist); |
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[10b866d] | 110 | } |
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| 111 | |
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[c9334b1] | 112 | void owl_editwin_set_dotsend(owl_editwin *e) |
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| 113 | { |
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[7d4fbcd] | 114 | e->dotsend=1; |
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| 115 | } |
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| 116 | |
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[e74c01c] | 117 | void owl_editwin_set_command(owl_editwin *e, char *command) { |
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| 118 | if(e->command) owl_free(e->command); |
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| 119 | e->command = owl_strdup(command); |
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| 120 | } |
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| 121 | |
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| 122 | char *owl_editwin_get_command(owl_editwin *e) { |
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| 123 | if(e->command) return e->command; |
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| 124 | return ""; |
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| 125 | } |
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| 126 | |
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| 127 | void owl_editwin_set_callback(owl_editwin *e, void (*cb)(owl_editwin*)) { |
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| 128 | e->callback = cb; |
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| 129 | } |
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| 130 | |
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| 131 | void (*owl_editwin_get_callback(owl_editwin *e))(owl_editwin*) { |
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| 132 | return e->callback; |
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| 133 | } |
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| 134 | |
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| 135 | void owl_editwin_set_cbdata(owl_editwin *e, void *data) { |
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| 136 | e->cbdata = data; |
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| 137 | } |
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| 138 | |
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[a556caa] | 139 | void *owl_editwin_get_cbdata(owl_editwin *e) { |
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[e74c01c] | 140 | return e->cbdata; |
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| 141 | } |
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| 142 | |
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| 143 | void owl_editwin_do_callback(owl_editwin *e) { |
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| 144 | void (*cb)(owl_editwin*); |
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| 145 | cb=owl_editwin_get_callback(e); |
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| 146 | if(!cb) { |
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| 147 | owl_function_error("Internal error: No editwin callback!"); |
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| 148 | } else { |
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[af1920fd] | 149 | /* owl_function_error("text: |%s|", owl_editwin_get_text(e)); */ |
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[e74c01c] | 150 | cb(e); |
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| 151 | } |
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| 152 | } |
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| 153 | |
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[c9334b1] | 154 | int owl_editwin_limit_maxcols(int v, int maxv) |
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| 155 | { |
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[d36f2cb] | 156 | if (maxv > 5 && v > maxv) { |
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[060b3b4] | 157 | return(maxv); |
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[d36f2cb] | 158 | } else { |
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[060b3b4] | 159 | return(v); |
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[d36f2cb] | 160 | } |
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| 161 | } |
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| 162 | |
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[c9334b1] | 163 | /* set text to be 'locked in' at the beginning of the buffer, any |
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| 164 | * previous text (including locked text) will be overwritten |
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| 165 | */ |
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| 166 | void owl_editwin_set_locktext(owl_editwin *e, char *text) |
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| 167 | { |
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[a556caa] | 168 | e->index = 0; |
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[7d4fbcd] | 169 | owl_editwin_overwrite_string(e, text); |
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[47519e1b] | 170 | owl_editwin_overwrite_char(e, '\0'); |
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[7d4fbcd] | 171 | e->lock=strlen(text); |
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[a556caa] | 172 | e->index = e->lock; |
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[7d4fbcd] | 173 | owl_editwin_redisplay(e, 0); |
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| 174 | } |
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| 175 | |
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[c9334b1] | 176 | int owl_editwin_get_style(owl_editwin *e) |
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| 177 | { |
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[7d4fbcd] | 178 | return(e->style); |
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| 179 | } |
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| 180 | |
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[c9334b1] | 181 | void owl_editwin_new_style(owl_editwin *e, int newstyle, owl_history *h) |
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| 182 | { |
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[7d4fbcd] | 183 | char *ptr; |
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[10b866d] | 184 | |
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| 185 | owl_editwin_set_history(e, h); |
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[7d4fbcd] | 186 | if (e->style==newstyle) return; |
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| 187 | |
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| 188 | if (newstyle==OWL_EDITWIN_STYLE_MULTILINE) { |
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| 189 | e->style=newstyle; |
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| 190 | } else if (newstyle==OWL_EDITWIN_STYLE_ONELINE) { |
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| 191 | e->style=newstyle; |
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| 192 | |
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| 193 | /* nuke everything after the first line */ |
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| 194 | if (e->bufflen > 0) { |
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| 195 | ptr=strchr(e->buff, '\n')-1; |
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| 196 | if (ptr) { |
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| 197 | e->bufflen=ptr - e->buff; |
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| 198 | e->buff[e->bufflen]='\0'; |
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[a556caa] | 199 | e->index = 0; |
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[7d4fbcd] | 200 | } |
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| 201 | } |
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| 202 | } |
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| 203 | } |
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| 204 | |
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[c9334b1] | 205 | /* completly reinitialize the buffer */ |
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| 206 | void owl_editwin_fullclear(owl_editwin *e) |
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| 207 | { |
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[7d4fbcd] | 208 | owl_free(e->buff); |
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[10b866d] | 209 | owl_editwin_init(e, e->curswin, e->winlines, e->wincols, e->style, e->hist); |
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[7d4fbcd] | 210 | } |
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| 211 | |
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[c9334b1] | 212 | /* clear all text except for locktext and put the cursor at the |
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| 213 | * beginning |
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| 214 | */ |
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| 215 | void owl_editwin_clear(owl_editwin *e) |
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| 216 | { |
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| 217 | |
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[7d4fbcd] | 218 | int lock; |
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[10b866d] | 219 | int dotsend=e->dotsend; |
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[7d4fbcd] | 220 | char *locktext=NULL; |
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[cc6f009] | 221 | char echochar=e->echochar; |
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[10b866d] | 222 | |
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[7d4fbcd] | 223 | lock=0; |
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| 224 | if (e->lock > 0) { |
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| 225 | lock=1; |
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| 226 | |
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| 227 | locktext=owl_malloc(e->lock+20); |
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| 228 | strncpy(locktext, e->buff, e->lock); |
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| 229 | locktext[e->lock]='\0'; |
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| 230 | } |
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| 231 | |
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| 232 | owl_free(e->buff); |
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[10b866d] | 233 | owl_editwin_init(e, e->curswin, e->winlines, e->wincols, e->style, e->hist); |
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[7d4fbcd] | 234 | |
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| 235 | if (lock > 0) { |
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| 236 | owl_editwin_set_locktext(e, locktext); |
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| 237 | } |
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[10b866d] | 238 | if (dotsend) { |
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| 239 | owl_editwin_set_dotsend(e); |
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| 240 | } |
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[cc6f009] | 241 | if (echochar) { |
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| 242 | owl_editwin_set_echochar(e, echochar); |
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| 243 | } |
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[7d4fbcd] | 244 | |
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| 245 | if (locktext) owl_free(locktext); |
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| 246 | owl_editwin_adjust_for_locktext(e); |
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| 247 | } |
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| 248 | |
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[c9334b1] | 249 | /* malloc more space for the buffer */ |
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| 250 | void _owl_editwin_addspace(owl_editwin *e) |
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| 251 | { |
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[7d4fbcd] | 252 | e->buff=owl_realloc(e->buff, e->allocated+INCR); |
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| 253 | if (!e->buff) { |
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[a556caa] | 254 | /* error *//*XXXXXXXXXXXXXXXX*/ |
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[7d4fbcd] | 255 | return; |
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| 256 | } |
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| 257 | e->allocated+=INCR; |
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| 258 | } |
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| 259 | |
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[c9334b1] | 260 | void owl_editwin_recenter(owl_editwin *e) |
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| 261 | { |
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[a556caa] | 262 | e->topindex = -1; |
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| 263 | } |
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| 264 | static void owl_editwin_reframe(owl_editwin *e) { /* noproto */ |
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[bd1a1ae] | 265 | e->topindex = 0; /*XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX*/ |
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[7d4fbcd] | 266 | } |
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| 267 | |
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[c9334b1] | 268 | /* regenerate the text on the curses window */ |
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| 269 | /* if update == 1 then do a doupdate(), otherwise do not */ |
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| 270 | void owl_editwin_redisplay(owl_editwin *e, int update) |
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| 271 | { |
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[bd1a1ae] | 272 | int x = -1, y = -1; char *p; |
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| 273 | int width, line, index, lineindex, cw; |
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| 274 | gunichar c; |
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[7d4fbcd] | 275 | |
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| 276 | werase(e->curswin); |
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[e0ffe77] | 277 | |
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[bd1a1ae] | 278 | do { |
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| 279 | if (e->topindex == -1 || e->index < e->topindex) |
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| 280 | owl_editwin_reframe(e); |
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[e0ffe77] | 281 | |
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[bd1a1ae] | 282 | line = 0; |
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| 283 | index = e->topindex; |
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| 284 | while(line < e->winlines) { |
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| 285 | width = 0; |
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| 286 | lineindex = index; |
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| 287 | /* okay, we want to find no nore that e->wincols cells or a \n */ |
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| 288 | /* then waddnstr it */ |
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| 289 | /* and as a side effect, noting where the cursor should end up */ |
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| 290 | while(1) { |
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| 291 | c = g_utf8_get_char(e->buff + index); |
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| 292 | if (index == e->index) |
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| 293 | y = line, x = width; |
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| 294 | if (c == 9) /* TAB */ |
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| 295 | cw = 8 - width % 8; |
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| 296 | else |
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| 297 | cw = mk_wcwidth(c); |
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| 298 | if (width + cw > e->wincols) |
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| 299 | break; |
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| 300 | width += cw; |
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| 301 | p = g_utf8_find_next_char(e->buff + index, e->buff + e->bufflen); |
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| 302 | if (p == NULL) /* we ran off the end */ |
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| 303 | break; |
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| 304 | index = p - e->buff; |
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| 305 | if (c == '\n') |
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| 306 | break; |
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| 307 | } |
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| 308 | if (index - lineindex) |
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| 309 | mvwaddnstr(e->curswin, line, 0, |
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| 310 | e->buff + lineindex, |
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| 311 | index - lineindex); |
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| 312 | if (p == NULL) |
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| 313 | break; |
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| 314 | line++; |
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[a556caa] | 315 | } |
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[bd1a1ae] | 316 | if (x == -1) { |
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| 317 | if (p == NULL && c != '\n') |
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| 318 | y = line, x = width; |
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| 319 | else if (p == NULL) |
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| 320 | y = line + 1, x = 0; |
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| 321 | else |
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| 322 | e->topindex = -1; /* force a reframe */ |
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[a556caa] | 323 | } |
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[bd1a1ae] | 324 | } while(x == -1); |
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| 325 | |
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| 326 | if (x != -1) |
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| 327 | wmove(e->curswin, y, x); |
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[7d4fbcd] | 328 | wnoutrefresh(e->curswin); |
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[a556caa] | 329 | if (update == 1) |
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[7d4fbcd] | 330 | doupdate(); |
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| 331 | } |
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| 332 | |
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[47519e1b] | 333 | /* Remove n bytes at cursor. */ |
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| 334 | void _owl_editwin_remove_bytes(owl_editwin *e, int n) /*noproto*/ |
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| 335 | { |
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[a556caa] | 336 | int i = e->index + n; |
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[47519e1b] | 337 | for (; i < e->bufflen; i++) { |
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| 338 | e->buff[i-n] = e->buff[i]; |
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| 339 | } |
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| 340 | |
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| 341 | e->bufflen -= n; |
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| 342 | e->buff[e->bufflen] = '\0'; |
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| 343 | } |
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[830c36e] | 344 | |
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[47519e1b] | 345 | /* Insert n bytes at cursor.*/ |
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| 346 | void _owl_editwin_insert_bytes(owl_editwin *e, int n) /*noproto*/ |
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| 347 | { |
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[a556caa] | 348 | int i; |
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[e9bb404] | 349 | |
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[47519e1b] | 350 | if ((e->bufflen + n) > (e->allocated - 5)) { |
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| 351 | _owl_editwin_addspace(e); |
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| 352 | } |
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| 353 | |
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[a556caa] | 354 | if(e->index != e->bufflen) { |
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| 355 | for (i = e->bufflen + n - 1; i > e->index; i--) { |
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[e9bb404] | 356 | e->buff[i] = e->buff[i - n]; |
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| 357 | } |
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[47519e1b] | 358 | } |
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[e9bb404] | 359 | |
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| 360 | e->bufflen += n; |
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| 361 | e->buff[e->bufflen] = '\0'; |
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| 362 | |
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[47519e1b] | 363 | } |
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| 364 | |
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[7d4fbcd] | 365 | |
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[c9334b1] | 366 | /* linewrap the word just before the cursor. |
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| 367 | * returns 0 on success |
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| 368 | * returns -1 if we could not wrap. |
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| 369 | */ |
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| 370 | int _owl_editwin_linewrap_word(owl_editwin *e) |
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| 371 | { |
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[84027015] | 372 | int i; |
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| 373 | char *ptr1, *start; |
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| 374 | gunichar c; |
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[7d4fbcd] | 375 | |
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[84027015] | 376 | start = e->buff + e->lock; |
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| 377 | |
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[a556caa] | 378 | ptr1 = e->buff + e->index; |
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[84027015] | 379 | ptr1 = g_utf8_find_prev_char(start, ptr1); |
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| 380 | |
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| 381 | while (ptr1) { |
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| 382 | c = g_utf8_get_char(ptr1); |
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| 383 | if (owl_util_can_break_after(c)) { |
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| 384 | if (c != ' ') { |
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| 385 | i = ptr1 - e->buff; |
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[a556caa] | 386 | e->index = i; |
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[b2c1bd4] | 387 | _owl_editwin_insert_bytes(e, 1); |
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| 388 | /* _owl_editwin_insert_bytes may move e->buff. */ |
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[84027015] | 389 | ptr1 = e->buff + i; |
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| 390 | } |
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| 391 | *ptr1 = '\n'; |
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| 392 | return 0; |
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[7d4fbcd] | 393 | } |
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[2d4ff14] | 394 | else if (c == '\n') { |
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| 395 | return 0; |
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| 396 | } |
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[84027015] | 397 | ptr1 = g_utf8_find_prev_char(start, ptr1); |
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[7d4fbcd] | 398 | } |
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[84027015] | 399 | return -1; |
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[7d4fbcd] | 400 | } |
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| 401 | |
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[c9334b1] | 402 | /* insert a character at the current point (shift later |
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| 403 | * characters over) |
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| 404 | */ |
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[47519e1b] | 405 | void owl_editwin_insert_char(owl_editwin *e, gunichar c) |
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[c9334b1] | 406 | { |
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[a556caa] | 407 | int i, ret, len; |
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[47519e1b] | 408 | char tmp[6]; |
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| 409 | memset(tmp, '\0', 6); |
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[830c36e] | 410 | |
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[7d4fbcd] | 411 | /* \r is \n */ |
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[47519e1b] | 412 | if (c == '\r') { |
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| 413 | c = '\n'; |
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[7d4fbcd] | 414 | } |
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| 415 | |
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[47519e1b] | 416 | if (c == '\n' && e->style == OWL_EDITWIN_STYLE_ONELINE) { |
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[7d4fbcd] | 417 | /* perhaps later this will change some state that allows the string |
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| 418 | to be read */ |
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| 419 | return; |
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| 420 | } |
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| 421 | |
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[47519e1b] | 422 | g_unichar_to_utf8(c, tmp); |
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| 423 | len = strlen(tmp); |
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[830c36e] | 424 | |
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[7d4fbcd] | 425 | /* make sure there is enough memory for the new text */ |
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[47519e1b] | 426 | if ((e->bufflen + len) > (e->allocated - 5)) { |
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[7d4fbcd] | 427 | _owl_editwin_addspace(e); |
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| 428 | } |
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| 429 | |
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| 430 | /* If we're going to insert at the last column do word wrapping, unless it's a \n */ |
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[a556caa] | 431 | #if 0 /* XXX */ |
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[47519e1b] | 432 | if ((e->buffx + 1 == e->wrapcol) && (c != '\n')) { |
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| 433 | ret = _owl_editwin_linewrap_word(e); |
---|
| 434 | if (ret == -1) { |
---|
[7d4fbcd] | 435 | /* we couldn't wrap, insert a hard newline instead */ |
---|
| 436 | owl_editwin_insert_char(e, '\n'); |
---|
| 437 | } |
---|
| 438 | } |
---|
[a556caa] | 439 | #endif |
---|
[7d4fbcd] | 440 | |
---|
| 441 | /* shift all the other characters right */ |
---|
[e9bb404] | 442 | _owl_editwin_insert_bytes(e, len); |
---|
[7d4fbcd] | 443 | |
---|
[47519e1b] | 444 | /* insert the new character */ |
---|
| 445 | for(i = 0; i < len; i++) { |
---|
[a556caa] | 446 | e->buff[e->index + i] = tmp[i]; |
---|
[47519e1b] | 447 | } |
---|
[7d4fbcd] | 448 | |
---|
| 449 | /* advance the cursor */ |
---|
[a556caa] | 450 | e->index += len; |
---|
[7d4fbcd] | 451 | } |
---|
| 452 | |
---|
[c9334b1] | 453 | /* overwrite the character at the current point with 'c' */ |
---|
[47519e1b] | 454 | void owl_editwin_overwrite_char(owl_editwin *e, gunichar c) |
---|
[c9334b1] | 455 | { |
---|
[a556caa] | 456 | int oldlen, newlen, i; |
---|
| 457 | char tmp[6], *t; |
---|
[47519e1b] | 458 | memset(tmp, '\0', 6); |
---|
[830c36e] | 459 | |
---|
[7d4fbcd] | 460 | /* \r is \n */ |
---|
[47519e1b] | 461 | if (c == '\r') { |
---|
| 462 | c = '\n'; |
---|
[7d4fbcd] | 463 | } |
---|
[830c36e] | 464 | |
---|
[47519e1b] | 465 | if (c == '\n' && e->style == OWL_EDITWIN_STYLE_ONELINE) { |
---|
[7d4fbcd] | 466 | /* perhaps later this will change some state that allows the string |
---|
| 467 | to be read */ |
---|
| 468 | return; |
---|
| 469 | } |
---|
| 470 | |
---|
[47519e1b] | 471 | g_unichar_to_utf8(c, tmp); |
---|
| 472 | newlen = strlen(tmp); |
---|
[7d4fbcd] | 473 | |
---|
[a556caa] | 474 | t = g_utf8_find_next_char(e->buff + e->index, NULL); |
---|
| 475 | oldlen = (t ? (t - (e->buff + e->index)) : 0); |
---|
[7d4fbcd] | 476 | |
---|
[830c36e] | 477 | /* only if we are at the end of the buffer do we create new space here */ |
---|
[a556caa] | 478 | if (e->index == e->bufflen) { |
---|
[830c36e] | 479 | if ((e->bufflen+newlen) > (e->allocated-5)) { |
---|
| 480 | _owl_editwin_addspace(e); |
---|
| 481 | } |
---|
[7d4fbcd] | 482 | } |
---|
[830c36e] | 483 | /* if not at the end of the buffer, adjust based in char size difference. */ |
---|
| 484 | else if (oldlen > newlen) { |
---|
[47519e1b] | 485 | _owl_editwin_remove_bytes(e, oldlen-newlen); |
---|
| 486 | } |
---|
| 487 | else /* oldlen < newlen */ { |
---|
| 488 | _owl_editwin_insert_bytes(e, newlen-oldlen); |
---|
[7d4fbcd] | 489 | } |
---|
[47519e1b] | 490 | /* Overwrite the old char*/ |
---|
| 491 | for (i = 0; i < newlen; i++) { |
---|
[a556caa] | 492 | e->buff[e->index + i] = tmp[i]; |
---|
[47519e1b] | 493 | } |
---|
| 494 | |
---|
| 495 | /* housekeeping */ |
---|
[a556caa] | 496 | if (e->index == e->bufflen) { |
---|
[830c36e] | 497 | e->bufflen += newlen; |
---|
| 498 | e->buff[e->bufflen] = '\0'; |
---|
| 499 | } |
---|
| 500 | |
---|
[47519e1b] | 501 | /* advance the cursor */ |
---|
[a556caa] | 502 | e->index += newlen; |
---|
[7d4fbcd] | 503 | } |
---|
| 504 | |
---|
[c9334b1] | 505 | /* delete the character at the current point, following chars |
---|
| 506 | * shift left. |
---|
| 507 | */ |
---|
| 508 | void owl_editwin_delete_char(owl_editwin *e) |
---|
| 509 | { |
---|
[47519e1b] | 510 | char *p1, *p2; |
---|
| 511 | gunichar c; |
---|
[7d4fbcd] | 512 | |
---|
[47519e1b] | 513 | if (e->bufflen == 0) return; |
---|
[7d4fbcd] | 514 | |
---|
[a556caa] | 515 | if (e->index == e->bufflen) return; |
---|
[7d4fbcd] | 516 | |
---|
[a556caa] | 517 | p1 = e->buff + e->index; |
---|
[47519e1b] | 518 | p2 = g_utf8_next_char(p1); |
---|
| 519 | c = g_utf8_get_char(p2); |
---|
| 520 | while (g_unichar_ismark(c)) { |
---|
| 521 | p2 = g_utf8_next_char(p2); |
---|
| 522 | c = g_utf8_get_char(p2); |
---|
[7d4fbcd] | 523 | } |
---|
[47519e1b] | 524 | _owl_editwin_remove_bytes(e, p2-p1); |
---|
[7d4fbcd] | 525 | } |
---|
| 526 | |
---|
[c9334b1] | 527 | /* Swap the character at point with the character at point-1 and |
---|
| 528 | * advance the pointer. If point is at beginning of buffer do |
---|
| 529 | * nothing. If point is after the last character swap point-1 with |
---|
| 530 | * point-2. (Behaves as observed in tcsh and emacs). |
---|
| 531 | */ |
---|
| 532 | void owl_editwin_transpose_chars(owl_editwin *e) |
---|
| 533 | { |
---|
[47519e1b] | 534 | char *p1, *p2, *p3, *tmp; |
---|
[f2e36b5] | 535 | |
---|
[47519e1b] | 536 | if (e->bufflen == 0) return; |
---|
[f2e36b5] | 537 | |
---|
[a556caa] | 538 | if (e->index == e->bufflen) { |
---|
[f2e36b5] | 539 | /* point is after last character */ |
---|
[a556caa] | 540 | e->index--; |
---|
[f2e36b5] | 541 | } |
---|
| 542 | |
---|
[a556caa] | 543 | if (e->index - 1 < e->lock) { |
---|
[f2e36b5] | 544 | /* point is at beginning of buffer, do nothing */ |
---|
| 545 | return; |
---|
| 546 | } |
---|
| 547 | |
---|
[47519e1b] | 548 | /* Transpose two utf-8 unicode glyphs. */ |
---|
[a556caa] | 549 | p1 = e->buff + e->index; |
---|
[47519e1b] | 550 | |
---|
| 551 | p2 = g_utf8_find_next_char(p1, NULL); |
---|
| 552 | while (p2 != NULL && g_unichar_ismark(g_utf8_get_char(p2))) { |
---|
| 553 | p2 = g_utf8_find_next_char(p2, NULL); |
---|
| 554 | } |
---|
| 555 | if (p2 == NULL) return; |
---|
| 556 | |
---|
| 557 | p3 = g_utf8_find_prev_char(e->buff, p1); |
---|
| 558 | while (p3 != NULL && g_unichar_ismark(g_utf8_get_char(p3))) { |
---|
| 559 | p3 = g_utf8_find_prev_char(p3, NULL); |
---|
| 560 | } |
---|
| 561 | if (p3 == NULL) return; |
---|
| 562 | |
---|
| 563 | tmp = owl_malloc(p2 - p3 + 5); |
---|
| 564 | *tmp = '\0'; |
---|
| 565 | strncat(tmp, p1, p2 - p1); |
---|
| 566 | strncat(tmp, p3, p1 - p3); |
---|
| 567 | strncpy(p3, tmp, p2 - p3); |
---|
| 568 | owl_free(tmp); |
---|
[a556caa] | 569 | e->index = p3 - e->buff; |
---|
[f2e36b5] | 570 | } |
---|
| 571 | |
---|
[c9334b1] | 572 | /* insert 'string' at the current point, later text is shifted |
---|
| 573 | * right |
---|
| 574 | */ |
---|
| 575 | void owl_editwin_insert_string(owl_editwin *e, char *string) |
---|
| 576 | { |
---|
[47519e1b] | 577 | char *p; |
---|
| 578 | gunichar c; |
---|
| 579 | if (!g_utf8_validate(string, -1, NULL)) { |
---|
| 580 | owl_function_debugmsg("owl_editwin_insert_string: received non-utf-8 string."); |
---|
| 581 | return; |
---|
| 582 | } |
---|
| 583 | p = string; |
---|
| 584 | c = g_utf8_get_char(p); |
---|
| 585 | while (c) { |
---|
[fac5463] | 586 | _owl_editwin_process_char(e, c); |
---|
[47519e1b] | 587 | p = g_utf8_next_char(p); |
---|
| 588 | c = g_utf8_get_char(p); |
---|
[7d4fbcd] | 589 | } |
---|
| 590 | } |
---|
| 591 | |
---|
[c9334b1] | 592 | /* write 'string' at the current point, overwriting text that is |
---|
| 593 | * already there |
---|
| 594 | */ |
---|
| 595 | |
---|
| 596 | void owl_editwin_overwrite_string(owl_editwin *e, char *string) |
---|
| 597 | { |
---|
[47519e1b] | 598 | char *p; |
---|
| 599 | gunichar c; |
---|
[7d4fbcd] | 600 | |
---|
[47519e1b] | 601 | if (!g_utf8_validate(string, -1, NULL)) { |
---|
| 602 | owl_function_debugmsg("owl_editwin_overwrite_string: received non-utf-8 string."); |
---|
| 603 | return; |
---|
| 604 | } |
---|
| 605 | p = string; |
---|
| 606 | c = g_utf8_get_char(p); |
---|
| 607 | while (c) { |
---|
| 608 | owl_editwin_overwrite_char(e, c); |
---|
| 609 | p = g_utf8_next_char(p); |
---|
| 610 | c = g_utf8_get_char(p); |
---|
[7d4fbcd] | 611 | } |
---|
| 612 | } |
---|
| 613 | |
---|
[a556caa] | 614 | /* We assume index is not set to point to a mid-char */ |
---|
| 615 | gunichar _owl_editwin_get_char_at_point(owl_editwin *e) |
---|
[c9334b1] | 616 | { |
---|
[a556caa] | 617 | return g_utf8_get_char(e->buff + e->index); |
---|
| 618 | } |
---|
[7d4fbcd] | 619 | |
---|
[a556caa] | 620 | void owl_editwin_save_excursion(owl_editwin *e, _owl_editwin_excursion *x) /*noproto*/ |
---|
| 621 | { |
---|
| 622 | x->index = e->index; |
---|
| 623 | x->goal_column = e->goal_column; |
---|
| 624 | } |
---|
[7d4fbcd] | 625 | |
---|
[a556caa] | 626 | void owl_editwin_restore_excursion(owl_editwin *e, _owl_editwin_excursion *x) /*noproto*/ |
---|
| 627 | { |
---|
| 628 | e->index = x->index; |
---|
| 629 | e->goal_column = x->goal_column; |
---|
| 630 | } |
---|
| 631 | |
---|
| 632 | void owl_editwin_adjust_for_locktext(owl_editwin *e) |
---|
| 633 | { |
---|
| 634 | /* if we happen to have the cursor over locked text |
---|
| 635 | * move it to be out of the locktext region */ |
---|
| 636 | if (e->index < e->lock) { |
---|
| 637 | e->index = e->lock; |
---|
[7d4fbcd] | 638 | } |
---|
| 639 | } |
---|
| 640 | |
---|
[a556caa] | 641 | int owl_editwin_point_move(owl_editwin *e, int delta) /*noproto*/ |
---|
[84027015] | 642 | { |
---|
[a556caa] | 643 | char *p, *boundary; |
---|
[bd1a1ae] | 644 | int change, index, d = 0; |
---|
[a556caa] | 645 | |
---|
| 646 | change = MAX(delta, - delta); |
---|
| 647 | p = e->buff + e->index; |
---|
| 648 | |
---|
[bd1a1ae] | 649 | boundary = e->buff + (delta > 0 ? (e->bufflen + 1) : e->lock); |
---|
[a556caa] | 650 | |
---|
| 651 | while (d < change && p != NULL) { |
---|
| 652 | if (delta > 0) { |
---|
| 653 | p = g_utf8_find_next_char(p, boundary); |
---|
| 654 | while (p && g_unichar_ismark(g_utf8_get_char(p))) |
---|
| 655 | p = g_utf8_find_next_char(p, boundary); |
---|
| 656 | } else { |
---|
| 657 | p = g_utf8_find_prev_char(boundary, p); |
---|
| 658 | while (p && g_unichar_ismark(g_utf8_get_char(p))) |
---|
| 659 | p = g_utf8_find_prev_char(boundary, p); |
---|
| 660 | } |
---|
[bd1a1ae] | 661 | if (p != NULL) { |
---|
| 662 | index = p - e->buff; |
---|
| 663 | if (index != e->index) { /* XXX rethink the loop termination condition |
---|
| 664 | above */ |
---|
| 665 | e->index = index; |
---|
| 666 | d++; |
---|
| 667 | } else |
---|
| 668 | break; |
---|
[a556caa] | 669 | } |
---|
| 670 | } |
---|
| 671 | |
---|
| 672 | if (delta) |
---|
| 673 | e->goal_column = -1; |
---|
| 674 | |
---|
| 675 | return delta > 0 ? d : -d; |
---|
[84027015] | 676 | } |
---|
| 677 | |
---|
[a556caa] | 678 | int owl_editwin_at_beginning_of_buffer(owl_editwin *e) { |
---|
| 679 | if (e->index == e->lock) |
---|
| 680 | return 1; |
---|
[84027015] | 681 | |
---|
[a556caa] | 682 | return 0; |
---|
| 683 | } |
---|
| 684 | |
---|
| 685 | int owl_at_end_of_buffer(owl_editwin *e) { |
---|
| 686 | if (e->index == e->bufflen) |
---|
| 687 | return 1; |
---|
| 688 | |
---|
| 689 | return 0; |
---|
| 690 | } |
---|
| 691 | |
---|
| 692 | int owl_editwin_at_beginning_of_line(owl_editwin *e) /*noproto*/ |
---|
[c9334b1] | 693 | { |
---|
[a556caa] | 694 | _owl_editwin_excursion x; |
---|
| 695 | int ret; |
---|
[47519e1b] | 696 | |
---|
[a556caa] | 697 | if (owl_editwin_at_beginning_of_buffer(e)) |
---|
| 698 | return 1; |
---|
[47519e1b] | 699 | |
---|
[a556caa] | 700 | owl_editwin_save_excursion(e, &x); |
---|
| 701 | owl_editwin_point_move(e, -1); |
---|
| 702 | ret = (_owl_editwin_get_char_at_point(e) == '\n'); |
---|
| 703 | owl_editwin_restore_excursion(e, &x); |
---|
| 704 | |
---|
| 705 | return ret; |
---|
| 706 | } |
---|
| 707 | |
---|
| 708 | int _owl_editwin_is_char_in(owl_editwin *e, char *set) /*noproto*/ |
---|
| 709 | { |
---|
| 710 | char *p; |
---|
| 711 | /* It would be awfully nice if we could do UTF-8 comparisons */ |
---|
| 712 | for (p = set; *p != 0; p++) |
---|
| 713 | if (_owl_editwin_get_char_at_point(e) == *p) |
---|
| 714 | return 1; |
---|
| 715 | return 0; |
---|
| 716 | } |
---|
| 717 | |
---|
| 718 | int owl_editwin_move_if_in(owl_editwin *e, int delta, char *set) /*noproto*/ |
---|
| 719 | { |
---|
| 720 | int change, distance = 0; |
---|
| 721 | while (_owl_editwin_is_char_in(e, set)) { |
---|
| 722 | change = owl_editwin_point_move(e, delta); |
---|
| 723 | distance += change; |
---|
| 724 | if (change == 0) |
---|
| 725 | break; |
---|
[47519e1b] | 726 | } |
---|
[a556caa] | 727 | return distance; |
---|
| 728 | } |
---|
| 729 | |
---|
| 730 | int owl_editwin_move_if_not_in(owl_editwin *e, int delta, char *set) /*noproto*/ |
---|
| 731 | { |
---|
| 732 | int change, distance = 0; |
---|
| 733 | while (!_owl_editwin_is_char_in(e, set)) { |
---|
| 734 | change = owl_editwin_point_move(e, delta); |
---|
| 735 | distance += change; |
---|
| 736 | if (change == 0) |
---|
| 737 | break; |
---|
[7d4fbcd] | 738 | } |
---|
[a556caa] | 739 | return distance; |
---|
[7d4fbcd] | 740 | } |
---|
| 741 | |
---|
[a556caa] | 742 | int owl_editwin_move_to_beginning_of_line(owl_editwin *e) /* noproto */ |
---|
[47519e1b] | 743 | { |
---|
[a556caa] | 744 | int distance = 0; |
---|
[47519e1b] | 745 | |
---|
[a556caa] | 746 | if (!owl_editwin_at_beginning_of_line(e)) { |
---|
| 747 | /* move off the \n if were at the end of a line */ |
---|
| 748 | distance += owl_editwin_point_move(e, -1); |
---|
| 749 | distance += owl_editwin_move_if_not_in(e, -1, "\n"); |
---|
| 750 | if (distance && !owl_editwin_at_beginning_of_buffer(e)) |
---|
| 751 | distance += owl_editwin_point_move(e, 1); |
---|
[47519e1b] | 752 | } |
---|
[84027015] | 753 | |
---|
[a556caa] | 754 | return distance; |
---|
| 755 | } |
---|
[84027015] | 756 | |
---|
[a556caa] | 757 | int owl_editwin_move_to_end_of_line(owl_editwin *e) /* noproto */ |
---|
| 758 | { |
---|
| 759 | return owl_editwin_move_if_not_in(e, 1, "\n"); |
---|
[47519e1b] | 760 | } |
---|
| 761 | |
---|
[a556caa] | 762 | int owl_editwin_line_move(owl_editwin *e, int delta) /*noproto*/ |
---|
[c9334b1] | 763 | { |
---|
[a556caa] | 764 | int goal_column, change, ll, count = 0, distance = 0; |
---|
| 765 | |
---|
| 766 | if (e->goal_column == -1) { |
---|
| 767 | if (owl_editwin_at_beginning_of_line(e)) |
---|
| 768 | goal_column = 0; |
---|
| 769 | else { |
---|
| 770 | goal_column = -owl_editwin_move_if_not_in(e, -1, "\n"); |
---|
| 771 | if (!owl_editwin_at_beginning_of_buffer(e)) |
---|
| 772 | goal_column -= owl_editwin_point_move(e, 1); |
---|
| 773 | } |
---|
| 774 | } else |
---|
| 775 | goal_column = e->goal_column; |
---|
| 776 | |
---|
| 777 | change = MAX(delta, -delta); |
---|
| 778 | |
---|
| 779 | distance += owl_editwin_move_to_beginning_of_line(e); |
---|
| 780 | |
---|
| 781 | while(count < change) { |
---|
| 782 | if (delta > 0) { |
---|
| 783 | distance += owl_editwin_move_if_not_in(e, 1, "\n"); |
---|
| 784 | distance += owl_editwin_point_move(e, 1); |
---|
| 785 | } else { |
---|
| 786 | /* I really want to assert delta < 0 here */ |
---|
| 787 | distance += owl_editwin_point_move(e, -1); /* to the newline on |
---|
| 788 | the previous line */ |
---|
| 789 | distance += owl_editwin_move_to_beginning_of_line(e); |
---|
| 790 | } |
---|
| 791 | count++; |
---|
[7d4fbcd] | 792 | } |
---|
[a556caa] | 793 | |
---|
| 794 | distance += (ll = owl_editwin_move_to_end_of_line(e)); |
---|
| 795 | if (ll > goal_column) |
---|
| 796 | distance += owl_editwin_point_move(e, goal_column - ll); |
---|
| 797 | |
---|
| 798 | e->goal_column = goal_column; |
---|
| 799 | |
---|
| 800 | return distance; |
---|
[7d4fbcd] | 801 | } |
---|
| 802 | |
---|
[c9334b1] | 803 | void owl_editwin_backspace(owl_editwin *e) |
---|
| 804 | { |
---|
[7d4fbcd] | 805 | /* delete the char before the current one |
---|
| 806 | * and shift later chars left |
---|
| 807 | */ |
---|
[a556caa] | 808 | if(owl_editwin_point_move(e, -1)) |
---|
[7d4fbcd] | 809 | owl_editwin_delete_char(e); |
---|
| 810 | } |
---|
| 811 | |
---|
[c9334b1] | 812 | void owl_editwin_key_up(owl_editwin *e) |
---|
| 813 | { |
---|
[a556caa] | 814 | owl_editwin_line_move(e, -1); |
---|
[7d4fbcd] | 815 | } |
---|
| 816 | |
---|
[c9334b1] | 817 | void owl_editwin_key_down(owl_editwin *e) |
---|
| 818 | { |
---|
[a556caa] | 819 | owl_editwin_line_move(e, 1); |
---|
[7d4fbcd] | 820 | } |
---|
| 821 | |
---|
[c9334b1] | 822 | void owl_editwin_key_left(owl_editwin *e) |
---|
| 823 | { |
---|
[a556caa] | 824 | owl_editwin_point_move(e, -1); |
---|
[7d4fbcd] | 825 | } |
---|
| 826 | |
---|
[c9334b1] | 827 | void owl_editwin_key_right(owl_editwin *e) |
---|
| 828 | { |
---|
[a556caa] | 829 | owl_editwin_point_move(e, 1); |
---|
[7d4fbcd] | 830 | } |
---|
| 831 | |
---|
[c9334b1] | 832 | void owl_editwin_move_to_nextword(owl_editwin *e) |
---|
| 833 | { |
---|
[7d4fbcd] | 834 | /* if we're starting on a space, find the first non-space */ |
---|
[a556caa] | 835 | owl_editwin_move_if_in(e, 1, WHITESPACE); |
---|
[7d4fbcd] | 836 | |
---|
[a556caa] | 837 | /* now find the end of this word */ |
---|
| 838 | owl_editwin_move_if_not_in(e, 1, WHITESPACE); |
---|
[7d4fbcd] | 839 | } |
---|
| 840 | |
---|
[c9334b1] | 841 | /* go backwards to the last non-space character |
---|
| 842 | */ |
---|
| 843 | void owl_editwin_move_to_previousword(owl_editwin *e) |
---|
| 844 | { |
---|
[a556caa] | 845 | _owl_editwin_excursion x; |
---|
| 846 | int beginning; |
---|
| 847 | /* if in middle of word, beginning of word */ |
---|
| 848 | |
---|
| 849 | /* if at beginning of a word, find beginning of previous word */ |
---|
| 850 | |
---|
| 851 | if (_owl_editwin_is_char_in(e, WHITESPACE)) { |
---|
| 852 | /* if in whitespace past end of word, find a word , the find the beginning*/ |
---|
| 853 | owl_editwin_move_if_in(e, -1, WHITESPACE); /* leaves us on the last |
---|
| 854 | character of the word */ |
---|
| 855 | owl_editwin_save_excursion(e, &x); |
---|
| 856 | /* are we at the beginning of a word? */ |
---|
| 857 | owl_editwin_point_move(e, -1); |
---|
| 858 | beginning = _owl_editwin_is_char_in(e, WHITESPACE); |
---|
| 859 | owl_editwin_restore_excursion(e, &x); |
---|
| 860 | if (beginning) |
---|
| 861 | return; |
---|
| 862 | } else { |
---|
| 863 | /* in the middle of the word; */ |
---|
| 864 | owl_editwin_save_excursion(e, &x); |
---|
| 865 | owl_editwin_point_move(e, -1); |
---|
| 866 | if (_owl_editwin_is_char_in(e, WHITESPACE)) { /* we were at the beginning */ |
---|
| 867 | owl_editwin_move_to_previousword(e); /* previous case */ |
---|
| 868 | return; |
---|
| 869 | } else { |
---|
| 870 | owl_editwin_restore_excursion(e, &x); |
---|
[7d4fbcd] | 871 | } |
---|
| 872 | } |
---|
[a556caa] | 873 | owl_editwin_move_if_not_in(e, -1, WHITESPACE); |
---|
| 874 | /* will go past */ |
---|
| 875 | if (e->index > e->lock) |
---|
| 876 | owl_editwin_point_move(e, 1); |
---|
[7d4fbcd] | 877 | } |
---|
| 878 | |
---|
[c9334b1] | 879 | void owl_editwin_delete_nextword(owl_editwin *e) |
---|
| 880 | { |
---|
[a556caa] | 881 | _owl_editwin_excursion x; |
---|
| 882 | int end; |
---|
| 883 | |
---|
| 884 | owl_editwin_save_excursion(e, &x); |
---|
| 885 | owl_editwin_move_to_nextword(e); |
---|
| 886 | end = e->index; |
---|
| 887 | owl_editwin_restore_excursion(e, &x); |
---|
| 888 | _owl_editwin_remove_bytes(e, end - e->index); |
---|
[7d4fbcd] | 889 | } |
---|
| 890 | |
---|
[c9334b1] | 891 | void owl_editwin_delete_previousword(owl_editwin *e) |
---|
| 892 | { |
---|
[b68f9cd] | 893 | /* go backwards to the last non-space character, then delete chars */ |
---|
[84027015] | 894 | int startpos, endpos; |
---|
[b68f9cd] | 895 | |
---|
[a556caa] | 896 | startpos = e->index; |
---|
[b68f9cd] | 897 | owl_editwin_move_to_previousword(e); |
---|
[a556caa] | 898 | endpos = e->index; |
---|
[84027015] | 899 | _owl_editwin_remove_bytes(e, startpos-endpos); |
---|
[b68f9cd] | 900 | } |
---|
| 901 | |
---|
[a556caa] | 902 | void owl_editwin_move_to_line_end(owl_editwin *e) |
---|
[c9334b1] | 903 | { |
---|
[a556caa] | 904 | owl_editwin_move_to_end_of_line(e); |
---|
[7d4fbcd] | 905 | } |
---|
| 906 | |
---|
[a556caa] | 907 | void owl_editwin_delete_to_endofline(owl_editwin *e) |
---|
[c9334b1] | 908 | { |
---|
[a556caa] | 909 | _owl_editwin_excursion x; |
---|
| 910 | int end; |
---|
| 911 | |
---|
| 912 | owl_editwin_save_excursion(e, &x); |
---|
| 913 | owl_editwin_move_to_line_end(e); |
---|
| 914 | end = e->index; |
---|
| 915 | owl_editwin_restore_excursion(e, &x); |
---|
| 916 | _owl_editwin_remove_bytes(e, end - e->index); |
---|
[7d4fbcd] | 917 | } |
---|
| 918 | |
---|
[c9334b1] | 919 | void owl_editwin_move_to_line_start(owl_editwin *e) |
---|
| 920 | { |
---|
[a556caa] | 921 | owl_editwin_move_to_beginning_of_line(e); |
---|
[7d4fbcd] | 922 | } |
---|
| 923 | |
---|
[c9334b1] | 924 | void owl_editwin_move_to_end(owl_editwin *e) |
---|
| 925 | { |
---|
[a556caa] | 926 | e->index = e->bufflen; |
---|
[7d4fbcd] | 927 | } |
---|
| 928 | |
---|
[c9334b1] | 929 | void owl_editwin_move_to_top(owl_editwin *e) |
---|
| 930 | { |
---|
[a556caa] | 931 | e->index = e->lock; |
---|
[7d4fbcd] | 932 | } |
---|
| 933 | |
---|
[c9334b1] | 934 | void owl_editwin_fill_paragraph(owl_editwin *e) |
---|
| 935 | { |
---|
[a556caa] | 936 | #if 0 /* XXX */ |
---|
| 937 | _owl_editwin_excursion x; |
---|
[7d4fbcd] | 938 | int i, save; |
---|
| 939 | |
---|
| 940 | /* save our starting point */ |
---|
[a556caa] | 941 | owl_editwin_save_excursion(e, &x); |
---|
| 942 | |
---|
| 943 | save = e->index; |
---|
[7d4fbcd] | 944 | |
---|
| 945 | /* scan back to the beginning of this paragraph */ |
---|
| 946 | for (i=save; i>=e->lock; i--) { |
---|
| 947 | if ( (i<=e->lock) || |
---|
| 948 | ((e->buff[i]=='\n') && (e->buff[i-1]=='\n'))) { |
---|
[a556caa] | 949 | e->index = i + 1; |
---|
[7d4fbcd] | 950 | break; |
---|
| 951 | } |
---|
| 952 | } |
---|
| 953 | |
---|
| 954 | /* main loop */ |
---|
| 955 | while (1) { |
---|
[47519e1b] | 956 | i = _owl_editwin_get_index_from_xy(e); |
---|
[7d4fbcd] | 957 | |
---|
| 958 | /* bail if we hit the end of the buffer */ |
---|
[47519e1b] | 959 | if (i >= e->bufflen || e->buff[i] == '\0') break; |
---|
[7d4fbcd] | 960 | |
---|
| 961 | /* bail if we hit the end of the paragraph */ |
---|
[47519e1b] | 962 | if (e->buff[i] == '\n' && e->buff[i+1] == '\n') break; |
---|
[7d4fbcd] | 963 | |
---|
[50e671c] | 964 | /* bail if we hit a trailing dot on the buffer */ |
---|
| 965 | if (e->buff[i] == '\n' && e->buff[i+1] == '.' |
---|
| 966 | && ((i+2) >= e->bufflen || e->buff[i+2] == '\0')) |
---|
| 967 | break; |
---|
| 968 | |
---|
[7d4fbcd] | 969 | /* if we've travelled too far, linewrap */ |
---|
| 970 | if ((e->buffx) >= e->fillcol) { |
---|
[b2c1bd4] | 971 | int len = e->bufflen; |
---|
[7d4fbcd] | 972 | _owl_editwin_linewrap_word(e); |
---|
[b2c1bd4] | 973 | /* we may have added a character. */ |
---|
| 974 | if (i < save) save += e->bufflen - len; |
---|
[a556caa] | 975 | e->index = i; |
---|
[7d4fbcd] | 976 | } |
---|
| 977 | |
---|
| 978 | /* did we hit the end of a line too soon? */ |
---|
[84027015] | 979 | /* asedeno: Here we replace a newline with a space. We may want to |
---|
| 980 | consider removing the space if the characters to either side |
---|
| 981 | are CJK ideograms.*/ |
---|
[47519e1b] | 982 | i = _owl_editwin_get_index_from_xy(e); |
---|
| 983 | if (e->buff[i] == '\n' && e->buffx < e->fillcol - 1) { |
---|
[7d4fbcd] | 984 | /* ********* we need to make sure we don't pull in a word that's too long ***********/ |
---|
| 985 | e->buff[i]=' '; |
---|
| 986 | } |
---|
[b2c1bd4] | 987 | |
---|
[7d4fbcd] | 988 | /* fix spacing */ |
---|
[47519e1b] | 989 | i = _owl_editwin_get_index_from_xy(e); |
---|
| 990 | if (e->buff[i] == ' ' && e->buff[i+1] == ' ') { |
---|
| 991 | if (e->buff[i-1] == '.' || e->buff[i-1] == '!' || e->buff[i-1] == '?') { |
---|
[7d4fbcd] | 992 | owl_editwin_key_right(e); |
---|
| 993 | } else { |
---|
| 994 | owl_editwin_delete_char(e); |
---|
[84027015] | 995 | /* if we did this ahead of the save point, adjust it. Changing |
---|
| 996 | by one is fine here because we're only removing an ASCII |
---|
| 997 | space. */ |
---|
[47519e1b] | 998 | if (i < save) save--; |
---|
[7d4fbcd] | 999 | } |
---|
| 1000 | } else { |
---|
| 1001 | owl_editwin_key_right(e); |
---|
| 1002 | } |
---|
| 1003 | } |
---|
| 1004 | |
---|
| 1005 | /* put cursor back at starting point */ |
---|
[a556caa] | 1006 | owl_editwin_restore_excursion(e, &x); |
---|
| 1007 | #endif |
---|
[7d4fbcd] | 1008 | } |
---|
| 1009 | |
---|
[cf83b7a] | 1010 | /* returns true if only whitespace remains */ |
---|
[c9334b1] | 1011 | int owl_editwin_is_at_end(owl_editwin *e) |
---|
| 1012 | { |
---|
[a556caa] | 1013 | return (only_whitespace(e->buff + e->index)); |
---|
[217a43e] | 1014 | } |
---|
| 1015 | |
---|
[c9334b1] | 1016 | int owl_editwin_check_dotsend(owl_editwin *e) |
---|
| 1017 | { |
---|
[47519e1b] | 1018 | char *p, *p_n, *p_p; |
---|
| 1019 | gunichar c; |
---|
[7d4fbcd] | 1020 | |
---|
| 1021 | if (!e->dotsend) return(0); |
---|
[47519e1b] | 1022 | |
---|
| 1023 | p = g_utf8_find_prev_char(e->buff, e->buff + e->bufflen); |
---|
| 1024 | p_n = g_utf8_find_next_char(p, NULL); |
---|
| 1025 | p_p = g_utf8_find_prev_char(e->buff, p); |
---|
| 1026 | c = g_utf8_get_char(p); |
---|
| 1027 | while (p != NULL) { |
---|
| 1028 | if (*p == '.' |
---|
| 1029 | && p_p != NULL && (*p_p == '\n' || *p_p == '\r') |
---|
| 1030 | && p_n != NULL && (*p_n == '\n' || *p_n == '\r')) { |
---|
| 1031 | e->bufflen = p - e->buff; |
---|
| 1032 | e->buff[e->bufflen] = '\0'; |
---|
[7d4fbcd] | 1033 | return(1); |
---|
| 1034 | } |
---|
[47519e1b] | 1035 | if (c != '\0' && !g_unichar_isspace(c)) return(0); |
---|
| 1036 | p_n = p; |
---|
| 1037 | p = p_p; |
---|
| 1038 | c = g_utf8_get_char(p); |
---|
| 1039 | p_p = g_utf8_find_prev_char(e->buff, p); |
---|
[7d4fbcd] | 1040 | } |
---|
| 1041 | return(0); |
---|
| 1042 | } |
---|
| 1043 | |
---|
[fac5463] | 1044 | void owl_editwin_post_process_char(owl_editwin *e, owl_input j) |
---|
[c9334b1] | 1045 | { |
---|
[a556caa] | 1046 | /* XXX force a redisplay? */ |
---|
[fac5463] | 1047 | if ((j.ch==13 || j.ch==10) && owl_editwin_check_dotsend(e)) { |
---|
[7d4fbcd] | 1048 | owl_command_editmulti_done(e); |
---|
| 1049 | return; |
---|
| 1050 | } |
---|
| 1051 | owl_editwin_redisplay(e, 0); |
---|
| 1052 | } |
---|
| 1053 | |
---|
[fac5463] | 1054 | void _owl_editwin_process_char(owl_editwin *e, gunichar j) |
---|
[c9334b1] | 1055 | { |
---|
[bd1a1ae] | 1056 | if (!(g_unichar_iscntrl(j) && (j != 10) && (j != 13)) || j==9 ) { |
---|
[7d4fbcd] | 1057 | owl_editwin_insert_char(e, j); |
---|
| 1058 | } |
---|
| 1059 | } |
---|
| 1060 | |
---|
[fac5463] | 1061 | |
---|
| 1062 | void owl_editwin_process_char(owl_editwin *e, owl_input j) |
---|
| 1063 | { |
---|
| 1064 | if (j.ch == ERR) return; |
---|
| 1065 | /* Ignore ncurses control characters. */ |
---|
| 1066 | if (j.ch < 0x100) { |
---|
| 1067 | _owl_editwin_process_char(e, j.uch); |
---|
| 1068 | } |
---|
| 1069 | } |
---|
| 1070 | |
---|
[c9334b1] | 1071 | char *owl_editwin_get_text(owl_editwin *e) |
---|
| 1072 | { |
---|
[7d4fbcd] | 1073 | return(e->buff+e->lock); |
---|
| 1074 | } |
---|
| 1075 | |
---|
[c9334b1] | 1076 | int owl_editwin_get_numchars_on_line(owl_editwin *e, int line) |
---|
| 1077 | { |
---|
[7d4fbcd] | 1078 | int i; |
---|
| 1079 | char *ptr1, *ptr2; |
---|
| 1080 | |
---|
| 1081 | if (e->bufflen==0) return(0); |
---|
| 1082 | |
---|
| 1083 | /* first go to the yth line */ |
---|
| 1084 | ptr1=e->buff; |
---|
| 1085 | for (i=0; i<line; i++) { |
---|
| 1086 | ptr2=strchr(ptr1, '\n'); |
---|
| 1087 | if (!ptr2) { |
---|
| 1088 | /* we're already on the last line */ |
---|
| 1089 | return(0); |
---|
| 1090 | } |
---|
| 1091 | ptr1=ptr2+1; |
---|
| 1092 | } |
---|
| 1093 | |
---|
[47519e1b] | 1094 | /* now count characters */ |
---|
| 1095 | i = 0; |
---|
| 1096 | ptr2 = ptr1; |
---|
| 1097 | while (ptr2 - e->buff < e->bufflen |
---|
| 1098 | && *ptr2 != '\n') { |
---|
| 1099 | ++i; |
---|
| 1100 | ptr2 = g_utf8_next_char(ptr2); |
---|
| 1101 | } |
---|
| 1102 | return i; |
---|
| 1103 | } |
---|
| 1104 | |
---|
[c9334b1] | 1105 | int owl_editwin_get_numlines(owl_editwin *e) |
---|
| 1106 | { |
---|
[7d4fbcd] | 1107 | return(owl_text_num_lines(e->buff)); |
---|
| 1108 | } |
---|
| 1109 | |
---|
[a556caa] | 1110 | int owl_editwin_get_echochar(owl_editwin *e) { |
---|
| 1111 | return e->echochar; |
---|
| 1112 | } |
---|