+ xbt_str_rtrim(s,char_list);
+ xbt_str_ltrim(s,char_list);
+}
+
+/** @brief Replace double whitespaces (but no other characters) from the string.
+ *
+ * The function modifies the string so that each time that several spaces appear,
+ * they are replaced by a single space. It will only do so for spaces (ASCII 32, 0x20).
+ *
+ * @param s The string to strip. Modified in place.
+ *
+ */
+void
+xbt_str_strip_spaces(char *s) {
+ char *p = s;
+ int e = 0;
+
+ if (!s)
+ return;
+
+ while (1) {
+ if (!*p)
+ goto end;
+
+ if (*p != ' ')
+ break;
+
+ p++;
+ }
+
+ e = 1;
+
+ do {
+ if (e)
+ *s++ = *p;
+
+ if (!*++p)
+ goto end;
+
+ if (e ^ (*p!=' '))
+ if ((e = !e))
+ *s++ = ' ';
+ } while (1);
+
+ end:
+ *s = '\0';
+}
+
+/** @brief Splits a string into a dynar of strings
+ *
+ * @param s: the string to split
+ * @param sep: a string of all chars to consider as separator.
+ *
+ * By default (with sep=NULL), these characters are used as separator:
+ *
+ * - " " (ASCII 32 (0x20)) space.
+ * - "\t" (ASCII 9 (0x09)) tab.
+ * - "\n" (ASCII 10 (0x0A)) line feed.
+ * - "\r" (ASCII 13 (0x0D)) carriage return.
+ * - "\0" (ASCII 0 (0x00)) NULL.
+ * - "\x0B" (ASCII 11 (0x0B)) vertical tab.
+ */
+
+xbt_dynar_t xbt_str_split(const char *s, const char *sep) {
+ xbt_dynar_t res = xbt_dynar_new(sizeof(char*), xbt_free_ref);
+ const char *p, *q;
+ int done;
+ const char* sep_dflt = " \t\n\r\x0B";
+ char is_sep[256] = {1,0};
+
+ /* check what are the separators */
+ memset(is_sep,0,sizeof(is_sep));
+ if (!sep) {
+ while (*sep_dflt)
+ is_sep[(unsigned char) *sep_dflt++] = 1;
+ } else {
+ while (*sep)
+ is_sep[(unsigned char) *sep++] = 1;
+ }
+ is_sep[0] = 1; /* End of string is also separator */
+
+ /* Do the job */
+ p=q=s;
+ done=0;
+
+ if (s[0] == '\0')
+ return res;
+
+ while (!done) {
+ char *topush;
+ while (!is_sep[(unsigned char)*q]) {
+ q++;
+ }
+ if (*q == '\0')
+ done = 1;
+
+ topush=xbt_malloc(q-p+1);
+ memcpy(topush,p,q-p);
+ topush[q - p] = '\0';
+ xbt_dynar_push(res,&topush);
+ p = ++q;
+ }
+
+ return res;
+}
+
+/**
+ * \brief This functions splits a string after using another string as separator
+ * For example A!!B!!C splitted after !! will return the dynar {A,B,C}
+ * \return An array of dynars containing the string tokens
+*/
+xbt_dynar_t xbt_str_split_str(const char *s, const char *sep) {
+ xbt_dynar_t res = xbt_dynar_new(sizeof(char*), xbt_free_ref);
+ int done;
+ const char *p, *q;
+
+ p = q = s;
+ done = 0;
+
+ if (s[0] == '\0')
+ return res;
+ if (sep[0] == '\0') {
+ s = xbt_strdup(s);
+ xbt_dynar_push(res, &s);
+ return res;
+ }
+
+ while (!done) {
+ char *to_push;
+ int v = 0;
+ //get the start of the first occurence of the substring
+ q = strstr(p, sep);
+ //if substring was not found add the entire string
+ if (NULL == q) {
+ v = strlen(p);
+ to_push = malloc(v + 1);
+ memcpy(to_push, p, v);
+ to_push[v] = '\0';
+ xbt_dynar_push(res, &to_push);
+ done = 1;
+ }
+ else {
+ //get the appearance
+ to_push = malloc(q - p + 1);
+ memcpy(to_push, p, q - p);
+ //add string terminator
+ to_push[q - p] = '\0';
+ xbt_dynar_push(res, &to_push);
+ p = q +strlen(sep);
+ }
+ }
+ return res;
+}
+
+/** @brief Splits a string into a dynar of strings, taking quotes into account
+ *
+ * It basically does the same argument separation than the shell, where white
+ * spaces can be escaped and where arguments are never splitted within a
+ * quote group.
+ * Several subsequent spaces are ignored (unless within quotes, of course).
+ *
+ */
+
+xbt_dynar_t xbt_str_split_quoted(const char *s) {
+ xbt_dynar_t res = xbt_dynar_new(sizeof(char*), xbt_free_ref);
+ char *str; /* we have to copy the string before, to handle backslashes */
+ char *beg, *end; /* pointers around the parsed chunk */
+ int in_simple_quote=0, in_double_quote=0;
+ int done = 0;
+ int ctn = 0; /* Got something in this block */
+
+ if (s[0] == '\0')
+ return res;
+ beg = str = xbt_strdup(s);
+
+ /* trim leading spaces */
+ xbt_str_ltrim(beg," ");
+ end=beg;
+
+ while (!done) {
+
+
+ switch (*end) {
+ case '\\':
+ ctn = 1;
+ /* Protected char; move it closer */
+ memmove(end,end+1,strlen(end));
+ if (*end=='\0')
+ THROW0(arg_error,0,"String ends with \\");
+ end++; /* Pass the protected char */
+ break;
+
+ case '\'':
+ ctn = 1;
+ if (!in_double_quote) {
+ in_simple_quote = !in_simple_quote;
+ memmove(end,end+1,strlen(end));
+ } else {
+ /* simple quote protected by double ones */
+ end++;
+ }
+ break;
+ case '"':
+ ctn = 1;
+ if (!in_simple_quote) {
+ in_double_quote = !in_double_quote;
+ memmove(end,end+1,strlen(end));
+ } else {
+ /* double quote protected by simple ones */
+ end++;
+ }
+ break;
+
+ case ' ':
+ case '\t':
+ case '\n':
+ case '\0':
+ if (*end == '\0' && (in_simple_quote || in_double_quote)) {
+ THROW2(arg_error,0,
+ "End of string found while searching for %c in %s",
+ (in_simple_quote?'\'':'"'),
+ s);
+ }
+ if (in_simple_quote || in_double_quote) {
+ end++;
+ } else {
+ if (ctn) {
+ /* Found a separator. Push the string if contains something */
+ char *topush=xbt_malloc(end-beg+1);
+ memcpy(topush,beg,end-beg);
+ topush[end - beg] = '\0';
+ xbt_dynar_push(res,&topush);
+ }
+ ctn= 0;
+
+ if (*end == '\0') {
+ done = 1;
+ break;
+ }
+
+ beg=++end;
+ xbt_str_ltrim(beg," ");
+ end=beg;
+ }
+ break;
+
+ default:
+ ctn = 1;
+ end++;
+ }
+ }
+ free(str);
+ return res;
+}
+
+#ifdef SIMGRID_TEST
+#include "xbt/str.h"
+
+#define mytest(name, input, expected) \
+ xbt_test_add0(name); \
+ d=xbt_str_split_quoted(input); \
+ s=xbt_str_join(d,"XXX"); \
+ xbt_test_assert3(!strcmp(s,expected),\
+ "Input (%s) leads to (%s) instead of (%s)", \
+ input,s,expected);\
+ free(s); \
+ xbt_dynar_free(&d);
+
+XBT_TEST_SUITE("xbt_str","String Handling");
+XBT_TEST_UNIT("xbt_str_split_quoted",test_split_quoted, "test the function xbt_str_split_quoted") {
+ xbt_dynar_t d;
+ char *s;
+
+ mytest("Empty", "", "");
+ mytest("Basic test", "toto tutu", "totoXXXtutu");
+ mytest("Useless backslashes", "\\t\\o\\t\\o \\t\\u\\t\\u", "totoXXXtutu");
+ mytest("Protected space", "toto\\ tutu", "toto tutu");
+ mytest("Several spaces", "toto tutu", "totoXXXtutu");
+ mytest("LTriming", " toto tatu", "totoXXXtatu");
+ mytest("Triming", " toto tutu ", "totoXXXtutu");
+ mytest("Single quotes", "'toto tutu' tata", "toto tutuXXXtata");
+ mytest("Double quotes", "\"toto tutu\" tata", "toto tutuXXXtata");
+ mytest("Mixed quotes", "\"toto' 'tutu\" tata", "toto' 'tutuXXXtata");
+ mytest("Backslashed quotes", "\\'toto tutu\\' tata", "'totoXXXtutu'XXXtata");
+ mytest("Backslashed quotes + quotes", "'toto \\'tutu' tata", "toto 'tutuXXXtata");
+
+}
+
+#define mytest_str(name, input, separator, expected) \
+ xbt_test_add0(name); \
+ d=xbt_str_split_str(input, separator); \
+ s=xbt_str_join(d,"XXX"); \
+ xbt_test_assert3(!strcmp(s,expected),\
+ "Input (%s) leads to (%s) instead of (%s)", \
+ input,s,expected);\
+ free(s); \
+ xbt_dynar_free(&d);
+
+XBT_TEST_UNIT("xbt_str_split_str",test_split_str, "test the function xbt_str_split_str") {
+ xbt_dynar_t d;
+ char *s;
+
+ mytest_str("Empty string and separator", "", "", "");
+ mytest_str("Empty string", "", "##", "");
+ mytest_str("Empty separator", "toto", "", "toto");
+ mytest_str("String with no separator in it", "toto", "##", "toto");
+ mytest_str("Basic test", "toto##tutu", "##", "totoXXXtutu");
+}
+#endif /* SIMGRID_TEST */
+
+/** @brief Join a set of strings as a single string */
+
+char *xbt_str_join(xbt_dynar_t dyn, const char*sep) {
+ int len=1,dyn_len=xbt_dynar_length(dyn);
+ unsigned int cpt;
+ char *cursor;
+ char *res,*p;
+
+ if (!dyn_len)
+ return xbt_strdup("");
+
+ /* compute the length */
+ xbt_dynar_foreach(dyn,cpt,cursor) {
+ len+=strlen(cursor);
+ }
+ len+=strlen(sep)*dyn_len;
+ /* Do the job */
+ res = xbt_malloc(len);
+ p=res;
+ xbt_dynar_foreach(dyn,cpt,cursor) {
+ if ((int)cpt<dyn_len-1)
+ p+=sprintf(p,"%s%s",cursor,sep);
+ else
+ p+=sprintf(p,"%s",cursor);
+ }
+ return res;