icuSources/tools/toolutil/writesrc.c

   1 /*
   2 *******************************************************************************
   3 *
   4 *   Copyright (C) 2005-2012, International Business Machines
   5 *   Corporation and others.  All Rights Reserved.
   6 *
   7 *******************************************************************************
   8 *   file name:  writesrc.c
   9 *   encoding:   US-ASCII
  10 *   tab size:   8 (not used)
  11 *   indentation:4
  12 *
  13 *   created on: 2005apr23
  14 *   created by: Markus W. Scherer
  15 *
  16 *   Helper functions for writing source code for data.
  17 */
  18
  19 #include <stdio.h>
  20 #include <time.h>
  21 #include "unicode/utypes.h"
  22 #include "unicode/putil.h"
  23 #include "utrie2.h"
  24 #include "cstring.h"
  25 #include "writesrc.h"
  26
  27 static FILE *
  28 usrc_createWithHeader(const char *path, const char *filename,
  29                       const char *generator, const char *header) {
  30     char buffer[1024];
  31     const char *p;
  32     char *q;
  33     FILE *f;
  34     char c;
  35
  36     if(path==NULL) {
  37         p=filename;
  38     } else {
  39         /* concatenate path and filename, with U_FILE_SEP_CHAR in between if necessary */
  40         uprv_strcpy(buffer, path);
  41         q=buffer+uprv_strlen(buffer);
  42         if(q>buffer && (c=*(q-1))!=U_FILE_SEP_CHAR && c!=U_FILE_ALT_SEP_CHAR) {
  43             *q++=U_FILE_SEP_CHAR;
  44         }
  45         uprv_strcpy(q, filename);
  46         p=buffer;
  47     }
  48
  49     f=fopen(p, "w");
  50     if(f!=NULL) {
  51         char year[8];
  52         const struct tm *lt;
  53         time_t t;
  54
  55         time(&t);
  56         lt=localtime(&t);
  57         strftime(year, sizeof(year), "%Y", lt);
  58         if(generator==NULL) {
  59             strftime(buffer, sizeof(buffer), "%Y-%m-%d", lt);
  60             fprintf(f, header, year, filename, buffer);
  61         } else {
  62             fprintf(f, header, year, filename, generator);
  63         }
  64     } else {
  65         fprintf(
  66             stderr,
  67             "usrc_create(%s, %s): unable to create file\n",
  68             path!=NULL ? path : "", filename);
  69     }
  70     return f;
  71 }
  72
  73 U_CAPI FILE * U_EXPORT2
  74 usrc_create(const char *path, const char *filename, const char *generator) {
  75     static const char *header=
  76         "/*\n"
  77         " * Copyright (C) 1999-%s, International Business Machines\n"
  78         " * Corporation and others.  All Rights Reserved.\n"
  79         " *\n"
  80         " * file name: %s\n"
  81         " *\n"
  82         " * machine-generated by: %s\n"
  83         " */\n\n";
  84     return usrc_createWithHeader(path, filename, generator, header);
  85 }
  86
  87 U_CAPI FILE * U_EXPORT2
  88 usrc_createTextData(const char *path, const char *filename, const char *generator) {
  89     static const char *header=
  90         "# Copyright (C) 1999-%s, International Business Machines\n"
  91         "# Corporation and others.  All Rights Reserved.\n"
  92         "#\n"
  93         "# file name: %s\n"
  94         "#\n"
  95         "# machine-generated by: %s\n"
  96         "#\n\n";
  97     return usrc_createWithHeader(path, filename, generator, header);
  98 }
  99
 100 U_CAPI void U_EXPORT2
 101 usrc_writeArray(FILE *f,
 102                 const char *prefix,
 103                 const void *p, int32_t width, int32_t length,
 104                 const char *postfix) {
 105     const uint8_t *p8;
 106     const uint16_t *p16;
 107     const uint32_t *p32;
 108     uint32_t value;
 109     int32_t i, col;
 110
 111     p8=NULL;
 112     p16=NULL;
 113     p32=NULL;
 114     switch(width) {
 115     case 8:
 116         p8=(const uint8_t *)p;
 117         break;
 118     case 16:
 119         p16=(const uint16_t *)p;
 120         break;
 121     case 32:
 122         p32=(const uint32_t *)p;
 123         break;
 124     default:
 125         fprintf(stderr, "usrc_writeArray(width=%ld) unrecognized width\n", (long)width);
 126         return;
 127     }
 128     if(prefix!=NULL) {
 129         fprintf(f, prefix, (long)length);
 130     }
 131     for(i=col=0; i<length; ++i, ++col) {
 132         if(i>0) {
 133             if(col<16) {
 134                 fputc(',', f);
 135             } else {
 136                 fputs(",\n", f);
 137                 col=0;
 138             }
 139         }
 140         switch(width) {
 141         case 8:
 142             value=p8[i];
 143             break;
 144         case 16:
 145             value=p16[i];
 146             break;
 147         case 32:
 148             value=p32[i];
 149             break;
 150         default:
 151             value=0; /* unreachable */
 152             break;
 153         }
 154         fprintf(f, value<=9 ? "%lu" : "0x%lx", (unsigned long)value);
 155     }
 156     if(postfix!=NULL) {
 157         fputs(postfix, f);
 158     }
 159 }
 160
 161 U_CAPI void U_EXPORT2
 162 usrc_writeUTrie2Arrays(FILE *f,
 163                        const char *indexPrefix, const char *data32Prefix,
 164                        const UTrie2 *pTrie,
 165                        const char *postfix) {
 166     if(pTrie->data32==NULL) {
 167         /* 16-bit trie */
 168         usrc_writeArray(f, indexPrefix, pTrie->index, 16, pTrie->indexLength+pTrie->dataLength, postfix);
 169     } else {
 170         /* 32-bit trie */
 171         usrc_writeArray(f, indexPrefix, pTrie->index, 16, pTrie->indexLength, postfix);
 172         usrc_writeArray(f, data32Prefix, pTrie->data32, 32, pTrie->dataLength, postfix);
 173     }
 174 }
 175
 176 U_CAPI void U_EXPORT2
 177 usrc_writeUTrie2Struct(FILE *f,
 178                        const char *prefix,
 179                        const UTrie2 *pTrie,
 180                        const char *indexName, const char *data32Name,
 181                        const char *postfix) {
 182     if(prefix!=NULL) {
 183         fputs(prefix, f);
 184     }
 185     if(pTrie->data32==NULL) {
 186         /* 16-bit trie */
 187         fprintf(
 188             f,
 189             "    %s,\n"         /* index */
 190             "    %s+%ld,\n"     /* data16 */
 191             "    NULL,\n",      /* data32 */
 192             indexName,
 193             indexName,
 194             (long)pTrie->indexLength);
 195     } else {
 196         /* 32-bit trie */
 197         fprintf(
 198             f,
 199             "    %s,\n"         /* index */
 200             "    NULL,\n"       /* data16 */
 201             "    %s,\n",        /* data32 */
 202             indexName,
 203             data32Name);
 204     }
 205     fprintf(
 206         f,
 207         "    %ld,\n"            /* indexLength */
 208         "    %ld,\n"            /* dataLength */
 209         "    0x%hx,\n"          /* index2NullOffset */
 210         "    0x%hx,\n"          /* dataNullOffset */
 211         "    0x%lx,\n"          /* initialValue */
 212         "    0x%lx,\n"          /* errorValue */
 213         "    0x%lx,\n"          /* highStart */
 214         "    0x%lx,\n"          /* highValueIndex */
 215         "    NULL, 0, FALSE, FALSE, 0, NULL\n",
 216         (long)pTrie->indexLength, (long)pTrie->dataLength,
 217         (short)pTrie->index2NullOffset, (short)pTrie->dataNullOffset,
 218         (long)pTrie->initialValue, (long)pTrie->errorValue,
 219         (long)pTrie->highStart, (long)pTrie->highValueIndex);
 220     if(postfix!=NULL) {
 221         fputs(postfix, f);
 222     }
 223 }
 224
 225 U_CAPI void U_EXPORT2
 226 usrc_writeArrayOfMostlyInvChars(FILE *f,
 227                                 const char *prefix,
 228                                 const char *p, int32_t length,
 229                                 const char *postfix) {
 230     int32_t i, col;
 231     int prev2, prev, c;
 232
 233     if(prefix!=NULL) {
 234         fprintf(f, prefix, (long)length);
 235     }
 236     prev2=prev=-1;
 237     for(i=col=0; i<length; ++i, ++col) {
 238         c=(uint8_t)p[i];
 239         if(i>0) {
 240             /* Break long lines. Try to break at interesting places, to minimize revision diffs. */
 241             if(
 242                 /* Very long line. */
 243                 col>=32 ||
 244                 /* Long line, break after terminating NUL. */
 245                 (col>=24 && prev2>=0x20 && prev==0) ||
 246                 /* Medium-long line, break before non-NUL, non-character byte. */
 247                 (col>=16 && (prev==0 || prev>=0x20) && 0<c && c<0x20)
 248             ) {
 249                 fputs(",\n", f);
 250                 col=0;
 251             } else {
 252                 fputc(',', f);
 253             }
 254         }
 255         fprintf(f, c<0x20 ? "%u" : "'%c'", c);
 256         prev2=prev;
 257         prev=c;
 258     }
 259     if(postfix!=NULL) {
 260         fputs(postfix, f);
 261     }
 262 }