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dcfdbac7 | 1 | /* GNU Emacs case conversion functions. |
3a22ee35 | 2 | Copyright (C) 1985, 1994 Free Software Foundation, Inc. |
dcfdbac7 JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
7c938215 | 8 | the Free Software Foundation; either version 2, or (at your option) |
dcfdbac7 JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
dcfdbac7 JB |
20 | |
21 | ||
18160b98 | 22 | #include <config.h> |
dcfdbac7 JB |
23 | #include "lisp.h" |
24 | #include "buffer.h" | |
25 | #include "commands.h" | |
26 | #include "syntax.h" | |
27 | ||
28 | enum case_action {CASE_UP, CASE_DOWN, CASE_CAPITALIZE, CASE_CAPITALIZE_UP}; | |
29 | \f | |
30 | Lisp_Object | |
31 | casify_object (flag, obj) | |
32 | enum case_action flag; | |
33 | Lisp_Object obj; | |
34 | { | |
35 | register int i, c, len; | |
36 | register int inword = flag == CASE_DOWN; | |
37 | ||
38 | while (1) | |
39 | { | |
9d05e3d4 | 40 | if (INTEGERP (obj)) |
dcfdbac7 JB |
41 | { |
42 | c = XINT (obj); | |
43 | if (c >= 0 && c <= 0400) | |
44 | { | |
45 | if (inword) | |
18e23fd0 | 46 | XSETFASTINT (obj, DOWNCASE (c)); |
dcfdbac7 | 47 | else if (!UPPERCASEP (c)) |
18e23fd0 | 48 | XSETFASTINT (obj, UPCASE1 (c)); |
dcfdbac7 JB |
49 | } |
50 | return obj; | |
51 | } | |
9d05e3d4 | 52 | if (STRINGP (obj)) |
dcfdbac7 JB |
53 | { |
54 | obj = Fcopy_sequence (obj); | |
55 | len = XSTRING (obj)->size; | |
56 | for (i = 0; i < len; i++) | |
57 | { | |
58 | c = XSTRING (obj)->data[i]; | |
96927ba4 | 59 | if (inword && flag != CASE_CAPITALIZE_UP) |
dcfdbac7 | 60 | c = DOWNCASE (c); |
96927ba4 RS |
61 | else if (!UPPERCASEP (c) |
62 | && (!inword || flag != CASE_CAPITALIZE_UP)) | |
dcfdbac7 JB |
63 | c = UPCASE1 (c); |
64 | XSTRING (obj)->data[i] = c; | |
96927ba4 | 65 | if ((int) flag >= (int) CASE_CAPITALIZE) |
dcfdbac7 JB |
66 | inword = SYNTAX (c) == Sword; |
67 | } | |
68 | return obj; | |
69 | } | |
b37902c8 | 70 | obj = wrong_type_argument (Qchar_or_string_p, obj); |
dcfdbac7 JB |
71 | } |
72 | } | |
73 | ||
74 | DEFUN ("upcase", Fupcase, Supcase, 1, 1, 0, | |
75 | "Convert argument to upper case and return that.\n\ | |
76 | The argument may be a character or string. The result has the same type.\n\ | |
8cef1f78 RS |
77 | The argument object is not altered--the value is a copy.\n\ |
78 | See also `capitalize', `downcase' and `upcase-initials'.") | |
dcfdbac7 JB |
79 | (obj) |
80 | Lisp_Object obj; | |
81 | { | |
82 | return casify_object (CASE_UP, obj); | |
83 | } | |
84 | ||
85 | DEFUN ("downcase", Fdowncase, Sdowncase, 1, 1, 0, | |
86 | "Convert argument to lower case and return that.\n\ | |
87 | The argument may be a character or string. The result has the same type.\n\ | |
8cef1f78 | 88 | The argument object is not altered--the value is a copy.") |
dcfdbac7 JB |
89 | (obj) |
90 | Lisp_Object obj; | |
91 | { | |
92 | return casify_object (CASE_DOWN, obj); | |
93 | } | |
94 | ||
95 | DEFUN ("capitalize", Fcapitalize, Scapitalize, 1, 1, 0, | |
96 | "Convert argument to capitalized form and return that.\n\ | |
97 | This means that each word's first character is upper case\n\ | |
98 | and the rest is lower case.\n\ | |
99 | The argument may be a character or string. The result has the same type.\n\ | |
8cef1f78 | 100 | The argument object is not altered--the value is a copy.") |
dcfdbac7 JB |
101 | (obj) |
102 | Lisp_Object obj; | |
103 | { | |
104 | return casify_object (CASE_CAPITALIZE, obj); | |
105 | } | |
96927ba4 | 106 | |
2371fad4 KH |
107 | /* Like Fcapitalize but change only the initials. */ |
108 | ||
8cef1f78 RS |
109 | DEFUN ("upcase-initials", Fupcase_initials, Supcase_initials, 1, 1, 0, |
110 | "Convert the initial of each word in the argument to upper case.\n\ | |
111 | Do not change the other letters of each word.\n\ | |
112 | The argument may be a character or string. The result has the same type.\n\ | |
113 | The argument object is not altered--the value is a copy.") | |
114 | (obj) | |
115 | Lisp_Object obj; | |
116 | { | |
117 | return casify_object (CASE_CAPITALIZE_UP, obj); | |
118 | } | |
dcfdbac7 JB |
119 | \f |
120 | /* flag is CASE_UP, CASE_DOWN or CASE_CAPITALIZE or CASE_CAPITALIZE_UP. | |
121 | b and e specify range of buffer to operate on. */ | |
122 | ||
123 | casify_region (flag, b, e) | |
124 | enum case_action flag; | |
125 | Lisp_Object b, e; | |
126 | { | |
127 | register int i; | |
128 | register int c; | |
129 | register int inword = flag == CASE_DOWN; | |
2371fad4 | 130 | int start, end; |
dcfdbac7 JB |
131 | |
132 | if (EQ (b, e)) | |
133 | /* Not modifying because nothing marked */ | |
134 | return; | |
135 | ||
136 | validate_region (&b, &e); | |
2371fad4 KH |
137 | start = XFASTINT (b); |
138 | end = XFASTINT (e); | |
139 | modify_region (current_buffer, start, end); | |
140 | record_change (start, end - start); | |
dcfdbac7 | 141 | |
2371fad4 | 142 | for (i = start; i < end; i++) |
dcfdbac7 JB |
143 | { |
144 | c = FETCH_CHAR (i); | |
145 | if (inword && flag != CASE_CAPITALIZE_UP) | |
146 | c = DOWNCASE (c); | |
147 | else if (!UPPERCASEP (c) | |
148 | && (!inword || flag != CASE_CAPITALIZE_UP)) | |
149 | c = UPCASE1 (c); | |
150 | FETCH_CHAR (i) = c; | |
151 | if ((int) flag >= (int) CASE_CAPITALIZE) | |
152 | inword = SYNTAX (c) == Sword; | |
153 | } | |
154 | ||
2371fad4 | 155 | signal_after_change (start, end - start, end - start); |
dcfdbac7 JB |
156 | } |
157 | ||
158 | DEFUN ("upcase-region", Fupcase_region, Supcase_region, 2, 2, "r", | |
159 | "Convert the region to upper case. In programs, wants two arguments.\n\ | |
160 | These arguments specify the starting and ending character numbers of\n\ | |
161 | the region to operate on. When used as a command, the text between\n\ | |
162 | point and the mark is operated on.\n\ | |
163 | See also `capitalize-region'.") | |
8c22d56c EN |
164 | (beg, end) |
165 | Lisp_Object beg, end; | |
dcfdbac7 | 166 | { |
8c22d56c | 167 | casify_region (CASE_UP, beg, end); |
dcfdbac7 JB |
168 | return Qnil; |
169 | } | |
170 | ||
171 | DEFUN ("downcase-region", Fdowncase_region, Sdowncase_region, 2, 2, "r", | |
172 | "Convert the region to lower case. In programs, wants two arguments.\n\ | |
173 | These arguments specify the starting and ending character numbers of\n\ | |
174 | the region to operate on. When used as a command, the text between\n\ | |
175 | point and the mark is operated on.") | |
8c22d56c EN |
176 | (beg, end) |
177 | Lisp_Object beg, end; | |
dcfdbac7 | 178 | { |
8c22d56c | 179 | casify_region (CASE_DOWN, beg, end); |
dcfdbac7 JB |
180 | return Qnil; |
181 | } | |
182 | ||
183 | DEFUN ("capitalize-region", Fcapitalize_region, Scapitalize_region, 2, 2, "r", | |
184 | "Convert the region to capitalized form.\n\ | |
185 | Capitalized form means each word's first character is upper case\n\ | |
186 | and the rest of it is lower case.\n\ | |
187 | In programs, give two arguments, the starting and ending\n\ | |
188 | character positions to operate on.") | |
8c22d56c EN |
189 | (beg, end) |
190 | Lisp_Object beg, end; | |
dcfdbac7 | 191 | { |
8c22d56c | 192 | casify_region (CASE_CAPITALIZE, beg, end); |
dcfdbac7 JB |
193 | return Qnil; |
194 | } | |
195 | ||
2371fad4 KH |
196 | /* Like Fcapitalize_region but change only the initials. */ |
197 | ||
8cef1f78 RS |
198 | DEFUN ("upcase-initials-region", Fupcase_initials_region, |
199 | Supcase_initials_region, 2, 2, "r", | |
200 | "Upcase the initial of each word in the region.\n\ | |
201 | Subsequent letters of each word are not changed.\n\ | |
202 | In programs, give two arguments, the starting and ending\n\ | |
203 | character positions to operate on.") | |
8c22d56c EN |
204 | (beg, end) |
205 | Lisp_Object beg, end; | |
8cef1f78 | 206 | { |
8c22d56c | 207 | casify_region (CASE_CAPITALIZE_UP, beg, end); |
8cef1f78 RS |
208 | return Qnil; |
209 | } | |
dcfdbac7 JB |
210 | \f |
211 | Lisp_Object | |
34628a90 | 212 | operate_on_word (arg, newpoint) |
dcfdbac7 | 213 | Lisp_Object arg; |
34628a90 | 214 | int *newpoint; |
dcfdbac7 | 215 | { |
39fb55ff | 216 | Lisp_Object val; |
34628a90 | 217 | int farend; |
2371fad4 | 218 | int iarg; |
dcfdbac7 JB |
219 | |
220 | CHECK_NUMBER (arg, 0); | |
2371fad4 KH |
221 | iarg = XINT (arg); |
222 | farend = scan_words (point, iarg); | |
dcfdbac7 | 223 | if (!farend) |
2371fad4 | 224 | farend = iarg > 0 ? ZV : BEGV; |
dcfdbac7 | 225 | |
34628a90 | 226 | *newpoint = point > farend ? point : farend; |
18e23fd0 | 227 | XSETFASTINT (val, farend); |
dcfdbac7 JB |
228 | |
229 | return val; | |
230 | } | |
231 | ||
232 | DEFUN ("upcase-word", Fupcase_word, Supcase_word, 1, 1, "p", | |
233 | "Convert following word (or ARG words) to upper case, moving over.\n\ | |
234 | With negative argument, convert previous words but do not move.\n\ | |
235 | See also `capitalize-word'.") | |
236 | (arg) | |
237 | Lisp_Object arg; | |
238 | { | |
34628a90 RS |
239 | Lisp_Object beg, end; |
240 | int newpoint; | |
18e23fd0 | 241 | XSETFASTINT (beg, point); |
34628a90 RS |
242 | end = operate_on_word (arg, &newpoint); |
243 | casify_region (CASE_UP, beg, end); | |
244 | SET_PT (newpoint); | |
dcfdbac7 JB |
245 | return Qnil; |
246 | } | |
247 | ||
248 | DEFUN ("downcase-word", Fdowncase_word, Sdowncase_word, 1, 1, "p", | |
249 | "Convert following word (or ARG words) to lower case, moving over.\n\ | |
250 | With negative argument, convert previous words but do not move.") | |
251 | (arg) | |
252 | Lisp_Object arg; | |
253 | { | |
34628a90 RS |
254 | Lisp_Object beg, end; |
255 | int newpoint; | |
18e23fd0 | 256 | XSETFASTINT (beg, point); |
34628a90 RS |
257 | end = operate_on_word (arg, &newpoint); |
258 | casify_region (CASE_DOWN, beg, end); | |
259 | SET_PT (newpoint); | |
dcfdbac7 JB |
260 | return Qnil; |
261 | } | |
262 | ||
263 | DEFUN ("capitalize-word", Fcapitalize_word, Scapitalize_word, 1, 1, "p", | |
264 | "Capitalize the following word (or ARG words), moving over.\n\ | |
265 | This gives the word(s) a first character in upper case\n\ | |
266 | and the rest lower case.\n\ | |
267 | With negative argument, capitalize previous words but do not move.") | |
268 | (arg) | |
269 | Lisp_Object arg; | |
270 | { | |
34628a90 RS |
271 | Lisp_Object beg, end; |
272 | int newpoint; | |
18e23fd0 | 273 | XSETFASTINT (beg, point); |
34628a90 RS |
274 | end = operate_on_word (arg, &newpoint); |
275 | casify_region (CASE_CAPITALIZE, beg, end); | |
276 | SET_PT (newpoint); | |
dcfdbac7 JB |
277 | return Qnil; |
278 | } | |
279 | \f | |
280 | syms_of_casefiddle () | |
281 | { | |
282 | defsubr (&Supcase); | |
283 | defsubr (&Sdowncase); | |
284 | defsubr (&Scapitalize); | |
8cef1f78 | 285 | defsubr (&Supcase_initials); |
dcfdbac7 JB |
286 | defsubr (&Supcase_region); |
287 | defsubr (&Sdowncase_region); | |
288 | defsubr (&Scapitalize_region); | |
8cef1f78 | 289 | defsubr (&Supcase_initials_region); |
dcfdbac7 JB |
290 | defsubr (&Supcase_word); |
291 | defsubr (&Sdowncase_word); | |
292 | defsubr (&Scapitalize_word); | |
293 | } | |
294 | ||
295 | keys_of_casefiddle () | |
296 | { | |
297 | initial_define_key (control_x_map, Ctl('U'), "upcase-region"); | |
d427b66a | 298 | Fput (intern ("upcase-region"), Qdisabled, Qt); |
dcfdbac7 | 299 | initial_define_key (control_x_map, Ctl('L'), "downcase-region"); |
d427b66a JB |
300 | Fput (intern ("downcase-region"), Qdisabled, Qt); |
301 | ||
dcfdbac7 JB |
302 | initial_define_key (meta_map, 'u', "upcase-word"); |
303 | initial_define_key (meta_map, 'l', "downcase-word"); | |
304 | initial_define_key (meta_map, 'c', "capitalize-word"); | |
305 | } |