tools/toollib/vstring.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <string.h>
   7 #include <ctype.h>
   8 #include <toollib/vstring.h>
   9
  10 String
  11 VS_New (const char * ini)
  12 {
  13     String str = new (struct _String);
  14
  15     if (ini && *ini)
  16     {
  17         int len = strlen (ini) + 1;
  18
  19         str->maxlen = ALIGN(len,8);
  20         str->buffer = xmalloc (str->maxlen);
  21         str->len    = len;
  22
  23         strcpy (str->buffer, ini);
  24     }
  25     else
  26     {
  27         str->maxlen = 32;
  28         str->buffer = xmalloc (str->maxlen);
  29         str->len    = 0;
  30
  31         str->buffer[0] = 0;
  32     }
  33
  34     return str;
  35 }
  36
  37 void
  38 VS_Delete (String str)
  39 {
  40     cfree (str->buffer);
  41     xfree (str);
  42 }
  43
  44 void
  45 VS_Clear (String str)
  46 {
  47     str->len = 0;
  48 }
  49
  50 void
  51 VS_AppendChar (String str, int c)
  52 {
  53     if (str->len + 2 >= str->maxlen)
  54     {
  55         str->maxlen += 32;
  56
  57         str->buffer = xrealloc (str->buffer, str->maxlen);
  58     }
  59
  60     str->buffer[str->len ++] = c;
  61     str->buffer[str->len]    = 0;
  62 }
  63
  64 void
  65 VS_AppendString (String str, const char * app)
  66 {
  67     int len = strlen (app);
  68
  69     if (str->len + len + 1 >= str->maxlen)
  70     {
  71         str->maxlen = ALIGN(str->len+len+1,8);
  72
  73         str->buffer = xrealloc (str->buffer, str->maxlen);
  74     }
  75
  76     strcpy (str->buffer + str->len, app);
  77     str->len += len;
  78 }
  79
  80 void
  81 VS_ToUpper (String str)
  82 {
  83     int t;
  84
  85     for (t=0; t<str->len; t++)
  86         str->buffer[t] = toupper (str->buffer[t]);
  87 }
  88
  89 void
  90 VS_ToLower (String str)
  91 {
  92     int t;
  93
  94     for (t=0; t<str->len; t++)
  95         str->buffer[t] = tolower (str->buffer[t]);
  96 }
  97
  98 String
  99 VS_SubString (const char * str, int begin, int len)
 100 {
 101     int    n;
 102     String nstr;
 103
 104     n = strlen (str);
 105
 106     if (begin >= n)
 107         return VS_New (NULL);
 108
 109     if (len == -1)
 110         n -= begin;
 111     else
 112     {
 113         if (begin+len > n)
 114             n -= begin;
 115         else
 116             n = len;
 117     }
 118
 119     nstr = new (struct _String);
 120
 121     nstr->maxlen = ALIGN(n+1,8);
 122     nstr->buffer = xmalloc (nstr->maxlen);
 123     nstr->len    = n;
 124
 125     strncpy (nstr->buffer, str + begin, n);
 126     nstr->buffer[n] = 0;
 127
 128     return nstr;
 129 }
 130
 131 char *
 132 strdupsub (const char * str, int begin, int len)
 133 {
 134     char * nstr;
 135     int    n;
 136
 137     if (!str)
 138         return NULL;
 139
 140     n = strlen (str);
 141
 142     if (begin >= n || len <= 0)
 143         return strdup ("");
 144
 145     if (begin+len > n)
 146         n -= begin;
 147     else
 148         n = len;
 149
 150     nstr = xmalloc (n+1);
 151
 152     strncpy (nstr, str + begin, n);
 153     nstr[n] = 0;
 154
 155     return nstr;
 156 }
 157
 158 char *
 159 stripquotes (const char * str)
 160 {
 161     int begin;
 162     int len;
 163
 164     if (*str == '"')
 165     {
 166         begin = 1;
 167
 168         len = strlen (str + begin);
 169
 170         if (str[len] == '"')
 171             len --;
 172
 173         if (len <= 0)
 174             len = -1;
 175
 176         return strdupsub (str, begin, len);
 177     }
 178
 179     return xstrdup (str);
 180 }
 181
 182 char *
 183 stripws (const char * str)
 184 {
 185     int begin;
 186     int len;
 187
 188     for (begin=0; isspace (str[begin]); begin++);
 189
 190     len = strlen (str + begin);
 191
 192     for (len--; len > 0 && isspace (str[begin + len]); len --);
 193
 194     len ++;
 195
 196     return strdupsub (str, begin, len);
 197 }
 198
 199 char *
 200 stripwsq (const char * str)
 201 {
 202     int begin;
 203     int len;
 204
 205     for (begin=0; isspace (str[begin]); begin++);
 206
 207     if (str[begin] == '"')
 208         begin ++;
 209
 210     len = strlen (str + begin);
 211
 212     for (len--; len > 0 && isspace (str[begin + len]); len --);
 213
 214     if (str[begin + len] == '"')
 215         len --;
 216
 217     len ++;
 218
 219     return strdupsub (str, begin, len);
 220 }
 221
 222 char *
 223 strupper (char * str)
 224 {
 225     char * ptr;
 226
 227     for (ptr=str; *ptr; ptr++)
 228         *ptr = toupper (*ptr);
 229
 230     return str;
 231 }
 232
 233 char *
 234 strlower (char * str)
 235 {
 236     char *ptr;
 237
 238     for (ptr=str; *ptr; ptr++)
 239         *ptr = tolower (*ptr);
 240
 241     return str;
 242 }