1 | /*--------------------------------*-C-*---------------------------------* |
1 | /*----------------------------------------------------------------------* |
2 | * File: misc.C |
2 | * File: misc.C |
3 | *----------------------------------------------------------------------* |
3 | *----------------------------------------------------------------------* |
4 | * |
4 | * |
5 | * All portions of code are copyright by their respective author/s. |
5 | * All portions of code are copyright by their respective author/s. |
6 | * Copyright (c) 1996 mj olesen <olesen@me.QueensU.CA> Queen's Univ at Kingston |
6 | * Copyright (c) 1996 mj olesen <olesen@me.QueensU.CA> Queen's Univ at Kingston |
7 | * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de> |
7 | * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de> |
8 | * Copyright (c) 1998-2000 Geoff Wing <gcw@pobox.com> |
8 | * Copyright (c) 1998-2000 Geoff Wing <gcw@pobox.com> |
9 | * Copyright (c) 2003-2004 Marc Lehmann <pcg@goof.com> |
9 | * Copyright (c) 2003-2006 Marc Lehmann <pcg@goof.com> |
10 | * |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify |
11 | * This program is free software; you can redistribute it and/or modify |
12 | * it under the terms of the GNU General Public License as published by |
12 | * it under the terms of the GNU General Public License as published by |
13 | * the Free Software Foundation; either version 2 of the License, or |
13 | * the Free Software Foundation; either version 2 of the License, or |
14 | * (at your option) any later version. |
14 | * (at your option) any later version. |
… | |
… | |
36 | |
36 | |
37 | char *dst = r; |
37 | char *dst = r; |
38 | while (len--) |
38 | while (len--) |
39 | { |
39 | { |
40 | ssize_t l = wcrtomb (dst, *str++, mbs); |
40 | ssize_t l = wcrtomb (dst, *str++, mbs); |
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41 | |
41 | if (l < 0) |
42 | if (l < 0) |
42 | *dst++ = '?'; |
43 | *dst++ = '?'; |
43 | else |
44 | else |
44 | dst += l; |
45 | dst += l; |
45 | } |
46 | } |
… | |
… | |
162 | |
163 | |
163 | return r; |
164 | return r; |
164 | } |
165 | } |
165 | |
166 | |
166 | char * |
167 | char * |
167 | rxvt_strdup (const char *str) |
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168 | { |
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169 | return str ? strdup (str) : 0; |
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170 | } |
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171 | |
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172 | char * |
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173 | rxvt_r_basename (const char *str) |
168 | rxvt_r_basename (const char *str) NOTHROW |
174 | { |
169 | { |
175 | char *base = strrchr (str, '/'); |
170 | char *base = strrchr (str, '/'); |
176 | |
171 | |
177 | return (char *) (base ? base + 1 : str); |
172 | return (char *) (base ? base + 1 : str); |
178 | } |
173 | } |
179 | |
174 | |
180 | /* |
175 | /* |
181 | * Print an error message |
176 | * Print an error message |
182 | */ |
177 | */ |
183 | void |
178 | void |
184 | rxvt_vlog (const char *fmt, va_list arg_ptr) |
179 | rxvt_vlog (const char *fmt, va_list arg_ptr) NOTHROW |
185 | { |
180 | { |
186 | char msg[1024]; |
181 | char msg[1024]; |
187 | |
182 | |
188 | vsnprintf (msg, sizeof msg, fmt, arg_ptr); |
183 | vsnprintf (msg, sizeof msg, fmt, arg_ptr); |
189 | |
184 | |
… | |
… | |
192 | else |
187 | else |
193 | write (STDOUT_FILENO, msg, strlen (msg)); |
188 | write (STDOUT_FILENO, msg, strlen (msg)); |
194 | } |
189 | } |
195 | |
190 | |
196 | void |
191 | void |
197 | rxvt_log (const char *fmt,...) |
192 | rxvt_log (const char *fmt,...) NOTHROW |
198 | { |
193 | { |
199 | va_list arg_ptr; |
194 | va_list arg_ptr; |
200 | |
195 | |
201 | va_start (arg_ptr, fmt); |
196 | va_start (arg_ptr, fmt); |
202 | rxvt_vlog (fmt, arg_ptr); |
197 | rxvt_vlog (fmt, arg_ptr); |
… | |
… | |
205 | |
200 | |
206 | /* |
201 | /* |
207 | * Print an error message |
202 | * Print an error message |
208 | */ |
203 | */ |
209 | void |
204 | void |
210 | rxvt_warn (const char *fmt,...) |
205 | rxvt_warn (const char *fmt,...) NOTHROW |
211 | { |
206 | { |
212 | va_list arg_ptr; |
207 | va_list arg_ptr; |
213 | |
208 | |
214 | rxvt_log ("%s: ", RESNAME); |
209 | rxvt_log ("%s: ", RESNAME); |
215 | |
210 | |
… | |
… | |
217 | rxvt_vlog (fmt, arg_ptr); |
212 | rxvt_vlog (fmt, arg_ptr); |
218 | va_end (arg_ptr); |
213 | va_end (arg_ptr); |
219 | } |
214 | } |
220 | |
215 | |
221 | void |
216 | void |
222 | rxvt_fatal (const char *fmt,...) |
217 | rxvt_fatal (const char *fmt,...) THROW ((class rxvt_failure_exception)) |
223 | { |
218 | { |
224 | va_list arg_ptr; |
219 | va_list arg_ptr; |
225 | |
220 | |
226 | rxvt_log ("%s: ", RESNAME); |
221 | rxvt_log ("%s: ", RESNAME); |
227 | |
222 | |
… | |
… | |
230 | va_end (arg_ptr); |
225 | va_end (arg_ptr); |
231 | |
226 | |
232 | rxvt_exit_failure (); |
227 | rxvt_exit_failure (); |
233 | } |
228 | } |
234 | |
229 | |
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230 | void |
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231 | rxvt_exit_failure () THROW ((class rxvt_failure_exception)) |
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232 | { |
235 | class rxvt_failure_exception rxvt_failure_exception; |
233 | static class rxvt_failure_exception rxvt_failure_exception; |
236 | |
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237 | void |
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238 | rxvt_exit_failure () |
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239 | { |
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240 | throw (rxvt_failure_exception); |
234 | throw (rxvt_failure_exception); |
241 | } |
235 | } |
242 | |
236 | |
243 | /* |
237 | /* |
244 | * check that the first characters of S1 match S2 |
238 | * remove leading/trailing space in place. |
245 | * |
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246 | * No Match |
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247 | * return: 0 |
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248 | * Match |
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249 | * return: strlen (S2) |
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250 | */ |
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251 | int |
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252 | rxvt_Str_match (const char *s1, const char *s2) |
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253 | { |
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254 | int n = strlen (s2); |
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255 | |
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256 | return ((strncmp (s1, s2, n) == 0) ? n : 0); |
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257 | } |
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258 | |
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259 | const char * |
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260 | rxvt_Str_skip_space (const char *str) |
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261 | { |
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262 | if (str) |
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263 | while (*str && isspace (*str)) |
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264 | str++; |
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265 | |
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266 | return str; |
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267 | } |
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268 | |
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269 | /* |
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270 | * remove leading/trailing space and strip-off leading/trailing quotes. |
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271 | * in place. |
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272 | */ |
239 | */ |
273 | char * |
240 | char * |
274 | rxvt_Str_trim (char *str) |
241 | rxvt_Str_trim (char *str) NOTHROW |
275 | { |
242 | { |
276 | char *r, *s; |
243 | char *r, *s; |
277 | |
244 | |
278 | if (!str || !*str) /* shortcut */ |
245 | if (!str || !*str) /* shortcut */ |
279 | return str; |
246 | return str; |
… | |
… | |
286 | |
253 | |
287 | /* dump return and other trailing whitespace */ |
254 | /* dump return and other trailing whitespace */ |
288 | while (r > s && isspace (*r)) |
255 | while (r > s && isspace (*r)) |
289 | r--; |
256 | r--; |
290 | |
257 | |
291 | #if 0 |
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292 | /* skip matching leading/trailing quotes */ |
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293 | if (*s == '"' && *r == '"' && n > 1) |
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294 | { |
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295 | s++; |
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296 | n -= 2; |
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297 | } |
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298 | #endif |
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299 | |
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300 | memmove (str, s, r + 1 - s); |
258 | memmove (str, s, r + 1 - s); |
301 | str[r + 1 - s] = 0; |
259 | str[r + 1 - s] = 0; |
302 | |
260 | |
303 | return str; |
261 | return str; |
304 | } |
|
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305 | |
|
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306 | /* |
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307 | * in-place interpretation of string: |
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308 | * |
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309 | * backslash-escaped: "\a\b\E\e\n\r\t", "\octal" |
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310 | * Ctrl chars: ^@ .. ^_, ^? |
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311 | * |
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312 | * Emacs-style: "M-" prefix |
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313 | * |
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314 | * Also, |
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315 | * "M-x" prefixed strings, append "\r" if needed |
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316 | * "\E]" prefixed strings (XTerm escape sequence) append ST if needed |
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317 | * |
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318 | * returns the converted string length |
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319 | */ |
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320 | int |
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321 | rxvt_Str_escaped (char *str) |
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322 | { |
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323 | char ch, *s, *d; |
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324 | int i, num, append = 0; |
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325 | |
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326 | if (!str || !*str) |
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327 | return 0; |
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328 | |
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329 | d = s = str; |
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330 | |
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331 | if (*s == 'M' && s[1] == '-') |
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332 | { |
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333 | /* Emacs convenience, replace leading `M-..' with `\E..' */ |
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334 | *d++ = C0_ESC; |
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335 | s += 2; |
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336 | if (toupper (*s) == 'X') |
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337 | /* append carriage-return for `M-xcommand' */ |
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338 | for (*d++ = 'x', append = '\r', s++; isspace (*s); s++) ; |
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339 | } |
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340 | for (; (ch = *s++);) |
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341 | { |
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342 | if (ch == '\\') |
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343 | { |
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344 | ch = *s++; |
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345 | if (ch >= '0' && ch <= '7') |
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346 | { /* octal */ |
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347 | num = ch - '0'; |
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348 | for (i = 0; i < 2; i++, s++) |
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349 | { |
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350 | ch = *s; |
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351 | if (ch < '0' || ch > '7') |
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352 | break; |
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353 | num = num * 8 + ch - '0'; |
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354 | } |
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355 | ch = (char)num; |
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356 | } |
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357 | else if (ch == 'a') |
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358 | ch = C0_BEL; /* bell */ |
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359 | else if (ch == 'b') |
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360 | ch = C0_BS; /* backspace */ |
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361 | else if (ch == 'E' || ch == 'e') |
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362 | ch = C0_ESC; /* escape */ |
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363 | else if (ch == 'n') |
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364 | ch = '\n'; /* newline */ |
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365 | else if (ch == 'r') |
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366 | ch = '\r'; /* carriage-return */ |
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367 | else if (ch == 't') |
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368 | ch = C0_HT; /* tab */ |
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369 | } |
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370 | else if (ch == '^') |
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371 | { |
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372 | ch = *s++; |
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373 | ch = toupper (ch); |
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374 | ch = (ch == '?' ? 127 : (ch - '@')); |
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375 | } |
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376 | *d++ = ch; |
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377 | } |
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378 | |
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379 | /* ESC] is an XTerm escape sequence, must be terminated */ |
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380 | if (*str == '\0' && str[1] == C0_ESC && str[2] == ']') |
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381 | append = CHAR_ST; |
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382 | |
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383 | /* add trailing character as required */ |
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384 | if (append && d[-1] != append) |
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385 | *d++ = append; |
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386 | *d = '\0'; |
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387 | |
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388 | return (d - str); |
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389 | } |
262 | } |
390 | |
263 | |
391 | /* |
264 | /* |
392 | * Split a comma-separated string into an array, stripping leading and |
265 | * Split a comma-separated string into an array, stripping leading and |
393 | * trailing spaces from each entry. Empty strings are properly returned |
266 | * trailing spaces from each entry. Empty strings are properly returned |
394 | * Caller should free each entry and array when done |
267 | * Caller should free each entry and array when done |
395 | */ |
268 | */ |
396 | char ** |
269 | char ** |
397 | rxvt_splitcommastring (const char *cs) |
270 | rxvt_splitcommastring (const char *cs) NOTHROW |
398 | { |
271 | { |
399 | int l, n, p; |
272 | int l, n, p; |
400 | const char *s, *t; |
273 | const char *s, *t; |
401 | char **ret; |
274 | char **ret; |
402 | |
275 | |
… | |
… | |
423 | |
296 | |
424 | return ret; |
297 | return ret; |
425 | } |
298 | } |
426 | |
299 | |
427 | void |
300 | void |
428 | rxvt_freecommastring (char **cs) |
301 | rxvt_freecommastring (char **cs) NOTHROW |
429 | { |
302 | { |
430 | for (int i = 0; cs[i]; ++i) |
303 | for (int i = 0; cs[i]; ++i) |
431 | free (cs[i]); |
304 | free (cs[i]); |
432 | |
305 | |
433 | free (cs); |
306 | free (cs); |
434 | } |
307 | } |
435 | |
308 | |
436 | /*----------------------------------------------------------------------* |
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437 | * file searching |
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438 | */ |
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439 | |
309 | |
440 | /* #define DEBUG_SEARCH_PATH */ |
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441 | |
310 | |
442 | #if defined (XPM_BACKGROUND) || (MENUBAR_MAX) |
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443 | /* |
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444 | * search for FILE in the current working directory, and within the |
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445 | * colon-delimited PATHLIST, adding the file extension EXT if required. |
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446 | * |
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447 | * FILE is either semi-colon or zero terminated |
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448 | */ |
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449 | char * |
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450 | rxvt_File_search_path (const char *pathlist, const char *file, const char *ext) |
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451 | { |
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452 | int maxpath, len; |
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453 | const char *p, *path; |
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454 | char name[256]; |
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455 | |
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456 | if (!access (file, R_OK)) /* found (plain name) in current directory */ |
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457 | return strdup (file); |
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458 | |
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459 | /* semi-colon delimited */ |
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460 | if ((p = strchr (file, ';'))) |
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461 | len = (p - file); |
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462 | else |
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463 | len = strlen (file); |
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464 | |
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465 | #ifdef DEBUG_SEARCH_PATH |
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466 | getcwd (name, sizeof (name)); |
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467 | fprintf (stderr, "pwd: \"%s\"\n", name); |
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468 | fprintf (stderr, "find: \"%.*s\"\n", len, file); |
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469 | #endif |
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470 | |
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471 | /* leave room for an extra '/' and trailing '\0' */ |
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472 | maxpath = sizeof (name) - (len + (ext ? strlen (ext) : 0) + 2); |
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473 | if (maxpath <= 0) |
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474 | return NULL; |
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475 | |
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476 | /* check if we can find it now */ |
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477 | strncpy (name, file, len); |
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478 | name[len] = '\0'; |
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479 | |
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480 | if (!access (name, R_OK)) |
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481 | return strdup (name); |
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482 | if (ext) |
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483 | { |
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484 | strcat (name, ext); |
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485 | if (!access (name, R_OK)) |
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486 | return strdup (name); |
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487 | } |
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488 | for (path = pathlist; path != NULL && *path != '\0'; path = p) |
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489 | { |
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490 | int n; |
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491 | |
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492 | /* colon delimited */ |
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493 | if ((p = strchr (path, ':')) == NULL) |
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494 | p = strchr (path, '\0'); |
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495 | |
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496 | n = (p - path); |
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497 | if (*p != '\0') |
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498 | p++; |
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499 | |
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500 | if (n > 0 && n <= maxpath) |
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501 | { |
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502 | strncpy (name, path, n); |
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503 | if (name[n - 1] != '/') |
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504 | name[n++] = '/'; |
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505 | name[n] = '\0'; |
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506 | strncat (name, file, len); |
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507 | |
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508 | if (!access (name, R_OK)) |
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509 | return strdup (name); |
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510 | if (ext) |
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511 | { |
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512 | strcat (name, ext); |
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513 | if (!access (name, R_OK)) |
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514 | return strdup (name); |
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515 | } |
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516 | } |
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517 | } |
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518 | return NULL; |
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519 | } |
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520 | |
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521 | char * |
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522 | rxvt_File_find (const char *file, const char *ext, const char *path) |
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523 | { |
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524 | char *f; |
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525 | |
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526 | if (file == NULL || *file == '\0') |
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527 | return NULL; |
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528 | |
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529 | /* search environment variables here too */ |
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530 | if ((f = rxvt_File_search_path (path, file, ext)) == NULL) |
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531 | #ifdef PATH_ENV |
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532 | if ((f = rxvt_File_search_path (getenv (PATH_ENV), file, ext)) == NULL) |
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533 | #endif |
|
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534 | f = rxvt_File_search_path (getenv ("PATH"), file, ext); |
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535 | |
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536 | #ifdef DEBUG_SEARCH_PATH |
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537 | if (f) |
|
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538 | fprintf (stderr, "found: \"%s\"\n", f); |
|
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539 | #endif |
|
|
540 | |
|
|
541 | return f; |
|
|
542 | } |
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543 | #endif /* defined (XPM_BACKGROUND) || (MENUBAR_MAX) */ |
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544 | |
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545 | /*----------------------------------------------------------------------* |
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546 | * miscellaneous drawing routines |
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547 | */ |
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548 | |
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549 | /* |
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550 | * Draw top/left and bottom/right border shadows around windows |
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551 | */ |
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552 | #if defined(RXVT_SCROLLBAR) || defined(MENUBAR) |
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553 | void |
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554 | rxvt_Draw_Shadow (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int h) |
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555 | { |
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556 | int shadow; |
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557 | |
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558 | shadow = (w == 0 || h == 0) ? 1 : SHADOW; |
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559 | w += x - 1; |
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560 | h += y - 1; |
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561 | for (; shadow-- > 0; x++, y++, w--, h--) |
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562 | { |
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563 | XDrawLine (display, win, topShadow, x, y, w, y); |
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564 | XDrawLine (display, win, topShadow, x, y, x, h); |
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565 | XDrawLine (display, win, botShadow, w, h, w, y + 1); |
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566 | XDrawLine (display, win, botShadow, w, h, x + 1, h); |
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567 | } |
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568 | } |
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569 | #endif |
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570 | |
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571 | /* button shapes */ |
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572 | #ifdef MENUBAR |
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573 | void |
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574 | rxvt_Draw_Triangle (Display *display, Window win, GC topShadow, GC botShadow, int x, int y, int w, int type) |
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575 | { |
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576 | switch (type) |
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577 | { |
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578 | case 'r': /* right triangle */ |
|
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579 | XDrawLine (display, win, topShadow, x, y, x, y + w); |
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|
580 | XDrawLine (display, win, topShadow, x, y, x + w, y + w / 2); |
|
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581 | XDrawLine (display, win, botShadow, x, y + w, x + w, y + w / 2); |
|
|
582 | break; |
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583 | |
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584 | case 'l': /* left triangle */ |
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585 | XDrawLine (display, win, botShadow, x + w, y + w, x + w, y); |
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586 | XDrawLine (display, win, botShadow, x + w, y + w, x, y + w / 2); |
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587 | XDrawLine (display, win, topShadow, x, y + w / 2, x + w, y); |
|
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588 | break; |
|
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589 | |
|
|
590 | case 'd': /* down triangle */ |
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591 | XDrawLine (display, win, topShadow, x, y, x + w / 2, y + w); |
|
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592 | XDrawLine (display, win, topShadow, x, y, x + w, y); |
|
|
593 | XDrawLine (display, win, botShadow, x + w, y, x + w / 2, y + w); |
|
|
594 | break; |
|
|
595 | |
|
|
596 | case 'u': /* up triangle */ |
|
|
597 | XDrawLine (display, win, botShadow, x + w, y + w, x + w / 2, y); |
|
|
598 | XDrawLine (display, win, botShadow, x + w, y + w, x, y + w); |
|
|
599 | XDrawLine (display, win, topShadow, x, y + w, x + w / 2, y); |
|
|
600 | break; |
|
|
601 | #if 0 |
|
|
602 | case 's': /* square */ |
|
|
603 | XDrawLine (display, win, topShadow, x + w, y, x, y); |
|
|
604 | XDrawLine (display, win, topShadow, x, y, x, y + w); |
|
|
605 | XDrawLine (display, win, botShadow, x, y + w, x + w, y + w); |
|
|
606 | XDrawLine (display, win, botShadow, x + w, y + w, x + w, y); |
|
|
607 | break; |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | } |
|
|
611 | } |
|
|
612 | #endif |
|
|
613 | |
|
|
614 | // should nto be use din interactive programs, for obvious reasons |
|
|
615 | void rxvt_usleep (int usecs) |
|
|
616 | { |
|
|
617 | #if HAVE_NANOSLEEP |
|
|
618 | struct timespec ts; |
|
|
619 | |
|
|
620 | ts.tv_sec = 0; |
|
|
621 | ts.tv_nsec = usecs * 1000; |
|
|
622 | nanosleep (&ts, NULL); |
|
|
623 | #else |
|
|
624 | /* use select for timing */ |
|
|
625 | struct timeval tv; |
|
|
626 | |
|
|
627 | tv.tv_sec = 0; |
|
|
628 | tv.tv_usec = usecs; |
|
|
629 | select (0, NULL, NULL, NULL, &tv); |
|
|
630 | #endif |
|
|
631 | } |
|
|
632 | |
|
|
633 | /*----------------------- end-of-file (C source) -----------------------*/ |
|
|
634 | |
|
|