/* xbt_str.cpp - various helping functions to deal with strings */
-/* Copyright (c) 2007-2014. The SimGrid Team.
+/* Copyright (c) 2007-2018. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-#include "src/internal_config.h"
+#include <xbt/ex.hpp>
#include "xbt/misc.h"
#include "xbt/sysdep.h"
#include "xbt/str.h" /* headers of these functions */
-#include "xbt/strbuff.h"
-
-/** @brief Strip whitespace (or other characters) from the end of a string.
- *
- * Strips the whitespaces from the end of s.
- * By default (when char_list=NULL), these characters get stripped:
- *
- * - " " (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.
- *
- * @param s The string to strip. Modified in place.
- * @param char_list A string which contains the characters you want to strip.
- */
-void xbt_str_rtrim(char *s, const char *char_list)
-{
- char *cur = s;
- const char *__char_list = " \t\n\r\x0B";
- char white_char[256] = { 1, 0 };
-
- if (!s)
- return;
-
- if (!char_list) {
- while (*__char_list) {
- white_char[(unsigned char) *__char_list++] = 1;
- }
- } else {
- while (*char_list) {
- white_char[(unsigned char) *char_list++] = 1;
- }
- }
-
- while (*cur)
- ++cur;
-
- while ((cur >= s) && white_char[(unsigned char) *cur])
- --cur;
-
- *++cur = '\0';
-}
-
-/** @brief Strip whitespace (or other characters) from the beginning of a string.
- *
- * Strips the whitespaces from the begining of s.
- * By default (when char_list=NULL), these characters get stripped:
- *
- * - " " (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.
- *
- * @param s The string to strip. Modified in place.
- * @param char_list A string which contains the characters you want to strip.
- */
-void xbt_str_ltrim(char *s, const char *char_list)
-{
- char *cur = s;
- const char *__char_list = " \t\n\r\x0B";
- char white_char[256] = { 1, 0 };
-
- if (!s)
- return;
-
- if (!char_list) {
- while (*__char_list) {
- white_char[(unsigned char) *__char_list++] = 1;
- }
- } else {
- while (*char_list) {
- white_char[(unsigned char) *char_list++] = 1;
- }
- }
-
- while (*cur && white_char[(unsigned char) *cur])
- ++cur;
-
- memmove(s, cur, strlen(cur) + 1);
-}
-
-/** @brief Strip whitespace (or other characters) from the end and the begining of a string.
- *
- * Strips the whitespaces from both the beginning and the end of s.
- * By default (when char_list=NULL), these characters get stripped:
- *
- * - " " (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.
- *
- * @param s The string to strip.
- * @param char_list A string which contains the characters you want to strip.
- */
-void xbt_str_trim(char *s, const char *char_list)
-{
- if (!s)
- return;
-
- xbt_str_rtrim(s, char_list);
- xbt_str_ltrim(s, char_list);
-}
-
-/** @brief Substitutes a char for another in a string
- *
- * @param str the string to modify
- * @param from char to search
- * @param to char to put instead
- * @param occurence number of changes to do (=0 means all)
- */
-void xbt_str_subst(char *str, char from, char to, int occurence)
-{
- char *p = str;
- while (*p != '\0') {
- if (*p == from) {
- *p = to;
- if (occurence == 1)
- return;
- occurence--;
- }
- p++;
- }
-}
-
-/** @brief Replaces a set of variables by their values
- *
- * @param str The input of the replacement process
- * @param patterns The changes to apply
- * @return The string modified
- *
- * 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).
- */
-char *xbt_str_varsubst(const char *str, xbt_dict_t patterns)
-{
- xbt_strbuff_t buff = xbt_strbuff_new_from(str);
- char *res;
- xbt_strbuff_varsubst(buff, patterns);
- res = buff->data;
- xbt_strbuff_free_container(buff);
- return res;
-}
-
/** @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:
+ * By default (with sep=nullptr), 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.
+ * - "\0" (ASCII 0 (0x00)) nullptr.
* - "\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) {
+ if (not 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 */
+ is_sep[0] = 1; /* End of string is also separator */
/* Do the job */
- p = s;
- q = s;
- done = 0;
+ const char* p = s;
+ const char* q = s;
+ int done = 0;
if (s[0] == '\0')
return res;
- while (!done) {
+ while (not done) {
char *topush;
- while (!is_sep[(unsigned char) *q]) {
+ while (not is_sep[(unsigned char)*q]) {
q++;
}
if (*q == '\0')
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 = s;
- 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 = (char*) xbt_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 = (char*) xbt_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 Just like @ref xbt_str_split_quoted (Splits a string into a dynar of strings), but without memory allocation
*
* The string passed as argument must be writable (not const)
* pushes the address of each chunk in the resulting dynar. Yes, that's uneven. Yes, that's gory. But that's efficient.
*/
xbt_dynar_t xbt_str_split_quoted_in_place(char *s) {
- xbt_dynar_t res = xbt_dynar_new(sizeof(char *), NULL);
- 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 */
+ xbt_dynar_t res = xbt_dynar_new(sizeof(char *), nullptr);
+ char* beg;
+ char* end; /* pointers around the parsed chunk */
+ int in_simple_quote = 0;
+ int in_double_quote = 0;
+ int done = 0;
+ int ctn = 0; /* Got something in this block */
if (s[0] == '\0')
return res;
/* do not trim leading spaces: caller responsibility to clean his cruft */
end = beg;
- while (!done) {
+ while (not done) {
switch (*end) {
case '\\':
ctn = 1;
break;
case '\'':
ctn = 1;
- if (!in_double_quote) {
- in_simple_quote = !in_simple_quote;
+ if (not in_double_quote) {
+ in_simple_quote = not in_simple_quote;
memmove(end, end + 1, strlen(end));
} else {
/* simple quote protected by double ones */
break;
case '"':
ctn = 1;
- if (!in_simple_quote) {
- in_double_quote = !in_double_quote;
+ if (not in_simple_quote) {
+ in_double_quote = not in_double_quote;
memmove(end, end + 1, strlen(end));
} else {
/* double quote protected by simple ones */
char *q=xbt_strdup(p);
xbt_dynar_push(res,&q);
}
- free(str_to_free);
+ xbt_free(str_to_free);
xbt_dynar_shrink(res, 0);
xbt_dynar_free(&parsed);
return res;
}
-/** @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 = (char*) xbt_malloc(len);
- p = res;
- xbt_dynar_foreach(dyn, cpt, cursor) {
- if ((int) cpt < dyn_len - 1)
- p += snprintf(p,len, "%s%s", cursor, sep);
- else
- p += snprintf(p,len, "%s", cursor);
- }
- return res;
-}
-
/** @brief Join a set of strings as a single string
*
- * The parameter must be a NULL-terminated array of chars,
+ * The parameter must be a nullptr-terminated array of chars,
* just like xbt_dynar_to_array() produces
*/
char *xbt_str_join_array(const char *const *strs, const char *sep)
{
- char *res,*q;
int amount_strings=0;
int len=0;
- int i;
- if ((!strs) || (!strs[0]))
+ if ((not strs) || (not strs[0]))
return xbt_strdup("");
/* compute the length before malloc */
- for (i=0;strs[i];i++) {
+ for (int i = 0; strs[i]; i++) {
len += strlen(strs[i]);
amount_strings++;
}
len += strlen(sep) * amount_strings;
/* Do the job */
- res = (char*) xbt_malloc(len);
- q = res;
- for (i=0;strs[i];i++) {
- if (i!=0) { // not first loop
+ char* res = (char*)xbt_malloc(len);
+ char* q = res;
+ for (int i = 0; strs[i]; i++) {
+ if (i != 0) { // not first loop
q += snprintf(q,len, "%s%s", sep, strs[i]);
} else {
q += snprintf(q,len, "%s",strs[i]);
return res;
}
-/** @brief creates a new string containing what can be read on a fd */
-char *xbt_str_from_file(FILE * file)
-{
- xbt_strbuff_t buff = xbt_strbuff_new();
- char *res;
- char bread[1024];
- memset(bread, 0, 1024);
-
- while (!feof(file)) {
- int got = fread(bread, 1, 1023, file);
- bread[got] = '\0';
- xbt_strbuff_append(buff, bread);
- }
-
- res = buff->data;
- xbt_strbuff_free_container(buff);
- return res;
-}
-
/** @brief Parse an integer out of a string, or raise an error
*
* The @a str is passed as argument to your @a error_msg, as follows:
*/
long int xbt_str_parse_int(const char* str, const char* error_msg)
{
- char *endptr;
- if (str == NULL || str[0] == '\0')
+ char* endptr;
+ if (str == nullptr || str[0] == '\0')
THROWF(arg_error, 0, error_msg, str);
long int res = strtol(str, &endptr, 10);
double xbt_str_parse_double(const char* str, const char* error_msg)
{
char *endptr;
- if (str == NULL || str[0] == '\0')
+ if (str == nullptr || str[0] == '\0')
THROWF(arg_error, 0, error_msg, str);
double res = strtod(str, &endptr);
}
#ifdef SIMGRID_TEST
+#include <xbt/ex.hpp>
#include "xbt/str.h"
XBT_TEST_SUITE("xbt_str", "String Handling");
-#define mytest(name, input, expected) \
- xbt_test_add(name); \
- d=xbt_str_split_quoted(input); \
- s=xbt_str_join(d,"XXX"); \
- xbt_test_assert(!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_quoted", test_split_quoted, "test the function xbt_str_split_quoted")
+#define mytest(name, input, expected) \
+ xbt_test_add(name); \
+ a = static_cast<char**>(xbt_dynar_to_array(xbt_str_split_quoted(input))); \
+ s = xbt_str_join_array(a, "XXX"); \
+ xbt_test_assert(not strcmp(s, expected), "Input (%s) leads to (%s) instead of (%s)", input, s, expected); \
+ xbt_free(s); \
+ for (int i = 0; a[i] != nullptr; i++) \
+ xbt_free(a[i]); \
+ xbt_free(a);
+XBT_TEST_UNIT("xbt_str_split_quoted", test_split_quoted, "Test the function xbt_str_split_quoted")
{
- xbt_dynar_t d;
+ char** a;
char *s;
mytest("Empty", "", "");
mytest("Backslashed quotes + quotes", "'toto \\'tutu' tata", "toto 'tutuXXXtata");
}
-#define mytest_str(name, input, separator, expected) \
- xbt_test_add(name); \
- d=xbt_str_split_str(input, separator); \
- s=xbt_str_join(d,"XXX"); \
- xbt_test_assert(!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");
-}
-
#define test_parse_error(function, name, variable, str) \
do { \
xbt_test_add(name); \
test_parse_ok(xbt_str_parse_int, "Parse -1 as an int", rint, "-1", -1);
test_parse_error(xbt_str_parse_int, "Parse int + noise", rint, "342 cruft");
- test_parse_error(xbt_str_parse_int, "Parse NULL as an int", rint, NULL);
+ test_parse_error(xbt_str_parse_int, "Parse nullptr as an int", rint, nullptr);
test_parse_error(xbt_str_parse_int, "Parse '' as an int", rint, "");
test_parse_error(xbt_str_parse_int, "Parse cruft as an int", rint, "cruft");
test_parse_ok(xbt_str_parse_double, "Parse -1 as a double", rdouble, "-1", -1);
test_parse_error(xbt_str_parse_double, "Parse double + noise", rdouble, "342 cruft");
- test_parse_error(xbt_str_parse_double, "Parse NULL as a double", rdouble, NULL);
+ test_parse_error(xbt_str_parse_double, "Parse nullptr as a double", rdouble, nullptr);
test_parse_error(xbt_str_parse_double, "Parse '' as a double", rdouble, "");
test_parse_error(xbt_str_parse_double, "Parse cruft as a double", rdouble, "cruft");
}
