-XBT_INLINE void xbt_strbuff_chomp(xbt_strbuff_t b)
-{
- while (b->used && b->data[b->used - 1] == '\n') {
- b->used--;
- b->data[b->used] = '\0';
- }
-}
-
-XBT_INLINE void xbt_strbuff_trim(xbt_strbuff_t b)
-{
- xbt_str_trim(b->data, " ");
- b->used = strlen(b->data);
-}
-
-/** @brief Replaces a set of variables by their values
- *
- * @param b buffer to modify
- * @param patterns variables to substitute in the buffer
- *
- * Both '$toto' and '${toto}' are valid (and the two writing are equivalent).
- *
- * If the variable name contains spaces, use the brace version (ie, ${toto tutu})
- *
- * You can provide a default value to use if the variable is not set in the dict by using
- * '${var:=default}' or '${var:-default}'. These two forms are equivalent, even if they
- * shouldn't to respect the shell standard (:= form should set the value in the dict,
- * but does not) (BUG).
- */
-void xbt_strbuff_varsubst(xbt_strbuff_t b, xbt_dict_t patterns)
-{
-
- char *end; /* pointers around the parsed chunk */
- int in_simple_quote = 0, in_double_quote = 0;
- int done = 0;
-
- if (b->data[0] == '\0')
- return;
- end = b->data;
-
- while (!done) {
- switch (*end) {
- case '\\':
- /* Protected char; pass the protection */
- end++;
- if (*end == '\0')
- THROWF(arg_error, 0, "String ends with \\");
- break;
-
- case '\'':
- if (!in_double_quote) {
- /* simple quote not protected by double ones, note it */
- in_simple_quote = !in_simple_quote;
- }
- break;
- case '"':
- if (!in_simple_quote) {
- /* double quote protected by simple ones, note it */
- in_double_quote = !in_double_quote;
- }
- break;
-
- case '$':
- if (!in_simple_quote) {
- /* Go for the substitution. First search the variable name */
- char *beg_var, *end_var; /* variable name boundary */
- char *beg_subst, *end_subst = NULL; /* where value should be written to */
- char *value, *default_value = NULL;
- int val_len;
- beg_subst = end;
-
-
- if (*(++end) == '{') {
- /* the variable name is enclosed in braces. */
- beg_var = end + 1;
- /* Search name's end */
- end_var = beg_var;
- while (*end_var != '\0' && *end_var != '}') {
- /* TODO: we do not respect the standard for ":=", we should set this value in the dict */
- if (*end_var == ':'
- && ((*(end_var + 1) == '=') || (*(end_var + 1) == '-'))) {
- /* damn, we have a default value */
- char *p = end_var + 1;
- while (*p != '\0' && *p != '}')
- p++;
- if (*p == '\0')
- THROWF(arg_error, 0,
- "Variable default value not terminated ('}' missing)");
-
- default_value = xbt_malloc(p - end_var - 1);
- memcpy(default_value, end_var + 2, p - end_var - 2);
- default_value[p - end_var - 2] = '\0';
-
- end_subst = p + 1; /* eat '}' */
-
- break;
- }
- end_var++;
- }
- if (*end_var == '\0')
- THROWF(arg_error, 0,
- "Variable name not terminated ('}' missing)");
-
- if (!end_subst) /* already set if there's a default value */
- end_subst = end_var + 1; /* also kill the } in the name */
-
- if (end_var == beg_var)
- THROWF(arg_error, 0, "Variable name empty (${} is not valid)");
-
-
- } else {
- /* name given directly */
- beg_var = end;
- end_var = beg_var;
- while (*end_var != '\0' && *end_var != ' ' && *end_var != '\t'
- && *end_var != '\n')
- end_var++;
- end_subst = end_var;
- if (end_var == beg_var)
- THROWF(arg_error, 0, "Variable name empty ($ is not valid)");
- }
-/* XBT_DEBUG("var='%.*s'; subst='%.*s'; End_var = '%s'",
- end_var-beg_var,beg_var,
- end_subst-beg_subst,beg_subst,
- end_var);*/
-
- /* ok, we now have the variable name. Search the dictionary for the substituted value */
- value =
- xbt_dict_get_or_null_ext(patterns, beg_var, end_var - beg_var);
-/* XBT_DEBUG("Deal with '%s'",b->data);
- XBT_DEBUG("Search for %.*s, found %s (default value = %s)\n",
- end_var-beg_var,beg_var,
- (value?value:"(no value)"),
- (default_value?default_value:"(no value)"));*/
-
- if (value)
- value = xbt_strdup(value);
- else if (default_value)
- value = xbt_strdup(default_value);
- else
- value = xbt_strdup("");
-
- /* En route for the actual substitution */
- val_len = strlen(value);
-// XBT_DEBUG("val_len = %d, key_len=%d",val_len,end_subst-beg_subst);
- if (val_len <= end_subst - beg_subst) {
- /* enough room to do the substitute in place */
-// XBT_DEBUG("Substitute key name by its value: ie '%.*s' by '%.*s'",end_subst-beg_subst,beg_subst,val_len,value);
- memmove(beg_subst, value, val_len); /* substitute */
-// XBT_DEBUG("String is now: '%s'",b->data);
-/* XBT_DEBUG("Move end of string closer (%d chars moved) :\n-'%.*s%.*s'\n+'%.*s%s'",
- b->used - (end_subst - b->data) + 1,
- beg_subst-b->data,b->data,
- b->used-(end_subst-b->data)+1,beg_subst+val_len,
- beg_subst-b->data,b->data,
- end_subst);*/
- memmove(beg_subst + val_len, end_subst, b->used - (end_subst - b->data) + 1); /* move the end of the string closer */
-// XBT_DEBUG("String is now: '%s'",b->data);
- end = beg_subst + val_len; /* update the currently explored char in the overall loop */
-// XBT_DEBUG("end of substituted section is now '%s'",end);
- b->used -= end_subst - beg_subst - val_len; /* update string buffer used size */
-// XBT_DEBUG("Used:%d end:%d ending char:%d",b->used,end-b->data,*end);
- } else {
- /* we have to extend the data area */
- int tooshort =
- val_len - (end_subst - beg_subst) + 1 /*don't forget \0 */ ;
- int newused = b->used + tooshort;
- end += tooshort; /* update the pointer of the overall loop */
-// XBT_DEBUG("Too short (by %d chars; %d chars left in area)",val_len- (end_subst-beg_subst), b->size - b->used);
- if (newused > b->size) {
- /* We have to realloc the data area before (because b->size is too small). We have to update our pointers, too */
- char *newdata = xbt_realloc(b->data,
- b->used + MAX(minimal_increment,
- tooshort));
- int offset = newdata - b->data;
- b->data = newdata;
- b->size = b->used + MAX(minimal_increment, tooshort);
- end += offset;
- beg_subst += offset;
- end_subst += offset;
- }
- memmove(beg_subst + val_len, end_subst, b->used - (end_subst - b->data) + 1); /* move the end of the string a bit further */
- memmove(beg_subst, value, val_len); /* substitute */
- b->used = newused;
-// XBT_DEBUG("String is now: %s",b->data);
- }
- free(value);
-
- free(default_value);
-
- end--; /* compensate the next end++ */
- }
- break;
-
- case '\0':
- done = 1;
- }
- end++;
- }
-}
-
-#ifdef SIMGRID_TEST
-#include "xbt/strbuff.h"
-
-/* buffstr have 512 chars by default. Adding 1000 chars like this will force a resize, allowing us to test that b->used and b->size are consistent */
-#define force_resize \
- "1.........1.........2.........3.........4.........5.........6.........7.........8.........9........." \
- "2.........1.........2.........3.........4.........5.........6.........7.........8.........9........." \
- "3.........1.........2.........3.........4.........5.........6.........7.........8.........9........." \
- "4.........1.........2.........3.........4.........5.........6.........7.........8.........9........." \
- "5.........1.........2.........3.........4.........5.........6.........7.........8.........9........." \
- "6.........1.........2.........3.........4.........5.........6.........7.........8.........9........." \
- "7.........1.........2.........3.........4.........5.........6.........7.........8.........9........." \
- "8.........1.........2.........3.........4.........5.........6.........7.........8.........9........." \
- "9.........1.........2.........3.........4.........5.........6.........7.........8.........9........." \
- "0.........1.........2.........3.........4.........5.........6.........7.........8.........9........."
-
-static void mytest(const char *input, const char *patterns,
- const char *expected)
-{
- xbt_dynar_t dyn_patterns; /* splited string */
- xbt_dict_t p; /* patterns */
- unsigned int cpt;
- char *str; /*foreach */
- xbt_strbuff_t sb; /* what we test */
-
- p = xbt_dict_new_homogeneous(free);
- dyn_patterns = xbt_str_split(patterns, " ");
- xbt_dynar_foreach(dyn_patterns, cpt, str) {
- xbt_dynar_t keyvals = xbt_str_split(str, "=");
- char *key = xbt_dynar_get_as(keyvals, 0, char *);
- char *val = xbt_dynar_get_as(keyvals, 1, char *);
- xbt_str_subst(key, '_', ' ', 0); // to put space in names without breaking the enclosing dynar_foreach
- xbt_dict_set(p, key, xbt_strdup(val), NULL);
- xbt_dynar_free(&keyvals);
- }
- xbt_dynar_free(&dyn_patterns);
- sb = xbt_strbuff_new();
- xbt_strbuff_append(sb, input);
- xbt_strbuff_varsubst(sb, p);
- xbt_dict_free(&p);
- xbt_test_assert(!strcmp(sb->data, expected),
- "Input (%s) with patterns (%s) leads to (%s) instead of (%s)",
- input, patterns, sb->data, expected);
- xbt_strbuff_free(sb);
-}
-
-XBT_TEST_SUITE("xbt_strbuff", "String Buffers");
-XBT_TEST_UNIT("xbt_strbuff_substitute", test_strbuff_substitute, "test the function xbt_strbuff_substitute")