$* Copyright (c) 2007-2010, Dirk Krause All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above opyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the Dirk Krause nor the names of contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. $* /** @file echo2lat.c The echo2lat program. */ #include #include #if DK_HAVE_UNISTD_H #include #endif #if DK_HAVE_STDLIB_H #include #endif #if DK_HAVE_PROCESS_H #include #endif #if DK_HAVE_STRING_H #include #endif #if DK_HAVE_STRINGS_H #include #endif #include #include #include #include #include #include /** System configuration directory. */ static char sysconf_dir[] = { DK_SYSCONFDIR }; /** Preference key for shared directory. */ static char pk_shdir[] = { "/dir/shared" }; /** Name of sub directory containing UC to LaTeX encoding tables. */ static char str_uc2lat_t[] = { "/uc2lat-t" }; /** Flag: Input is UTF-8 encoded. */ static int have_utf8 = 0; /** Check LANG environment variable for UTF-8. */ static void check_environment DK_P0() { char *ptr; ptr = getenv("LANG"); if(ptr) { ptr = strchr(ptr, '.'); if(ptr) { ptr++; if(dkstr_casecmp(ptr, "utf-8") == 0) { have_utf8 = 1; } } } } /** String: Opening math mode. */ static char str_mm_open[] = { "\\(" }; /** String: Closing math mode. */ static char str_mm_close[] = { "\\)" }; /** Print one string to output. @param le LaTeX encoder. @param s String to print. @param i Index of the current string in argv. */ static void output_string DK_P3(dk_le_t *,le, char *,s, int,i) { char obuffer[16], *ptr, *res; char c; unsigned char uc; unsigned u; dk_udword uw; size_t avail, step, u_obuffer; int mm, success, cc; int error_found; if(i > 1) { fputc(' ', stdout); } mm = 0; ptr = s; error_found = 0; if(have_utf8) { cc = 1; avail = strlen(ptr); while(cc) { cc = 0; if(avail > 0) { step = 0; cc = dkenc_utf82uc(&uw, (unsigned char *)ptr, avail, &step); if(cc) { success = 0; if(dkle_load(le, uw)) { if((res = dkle_get_encoding(le, uw, 0)) != NULL) { if(mm) { fputs(str_mm_close,stdout); } mm = 0; fputs(res, stdout); success = 1; } else { if((res = dkle_get_encoding(le, uw, 0)) != NULL) { if(!mm) { fputs(str_mm_open, stdout); } mm = 1; fputs(res, stdout); success = 1; } } } if(!success) { if(uw < 256UL) { uc = (unsigned char)uw; c = (char)uc; if(mm) { fputs(str_mm_close,stdout); } mm = 0; if((res = dk_l2l_encoding(c)) != NULL) { fputs(res, stdout); } else { fputc(c, stdout); } } else { // Convert back to UTF-8, may be handled by inputenc package u_obuffer = dkenc_uc2utf8(uw,(dk_ubyte *)obuffer,sizeof(obuffer)); if(u_obuffer > 0) { obuffer[u_obuffer] = '\0'; fputs(obuffer, stdout); } } } if(step < avail) { avail = avail - step; while(step--) ptr++; } else { avail = cc = 0; } } } if(error_found) { cc = 0; } } } else { while(*ptr) { c = *ptr; uc = (unsigned char)c; u = (unsigned)uc; uw = (dk_udword)u; uw = uw & 0x000000FFUL; success = 0; if(dkle_load(le, uw)) { if((res = dkle_get_encoding(le, uw, 0)) != NULL) { if(mm) { fputs(str_mm_close, stdout); } mm = 0; fputs(res, stdout); success = 1; } else { if((res = dkle_get_encoding(le, uw, 1)) != NULL) { if(!mm) { fputs(str_mm_open, stdout); } mm = 1; fputs(res, stdout); success = 1; } } } if(!success) { if(mm) { fputs(str_mm_close, stdout); } mm = 0; res = dk_l2l_encoding(c); if(res) { fputs(res, stdout); } else { fputc(c, stdout); } } ptr++; } if(mm) { fputs(str_mm_close, stdout); } } } /** The main() function of the echo2lat program. @param argc Number of command line arguments. @param argv Command line arguments array. @return 0 on success, any other value indicates an error. */ #if DK_HAVE_PROTOTYPES int main(int argc, char *argv[]) #else int main(argc, argv) int argc; char *argv[]; #endif { int exval = 0; dk_app_t *app = NULL; dk_le_t *le = NULL; static char dirbuffer[1024]; int i, xargc; char **xargv; check_environment(); app = dkapp_open_ext1(argc, argv, "uc2lat", sysconf_dir, 0, 1); if(app) { if(dkapp_get_pref(app, pk_shdir, dirbuffer, sizeof(dirbuffer), 0)) { if(strlen(dirbuffer) + strlen(str_uc2lat_t) < sizeof(dirbuffer)) { strcat(dirbuffer, str_uc2lat_t); dksf_correct_fnsep(dirbuffer); le = dkle_open(dirbuffer); if(le) { xargc = dkapp_get_argc(app); xargv = dkapp_get_argv(app); for(i = 1; i < xargc; i++) { output_string(le, xargv[i], i); } fputc('\n', stdout); fflush(stdout); exval = 1; dkle_close(le); } else { /* ##### ERROR */ } } } dkapp_close(app); app = NULL; } else { fprintf(stderr, "ERROR: Not enough memory!\n"); fflush(stderr); } exval = (exval ? 0 : 1); exit(exval); return exval; }