X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/9e291a3a66a2c277895e78b3921c068436e7f9a1..0d2220ca1c127fc19c249e6e59dec2ac47107854:/src/xbt/xbt_str.c

diff --git a/src/xbt/xbt_str.c b/src/xbt/xbt_str.c
index 811f1d951c..6e4739bd37 100644
--- a/src/xbt/xbt_str.c
+++ b/src/xbt/xbt_str.c
@@ -102,7 +102,7 @@ xbt_str_ltrim( char* s, const char* char_list)
 	while(*cur && white_char[(unsigned char)*cur])
 		++cur;
 
-	memmove(s,cur, strlen(cur));
+	memmove(s,cur, strlen(cur)+1);
 }
 
 /**  @brief Strip whitespace (or other characters) from the end and the begining of a string.
@@ -233,28 +233,242 @@ xbt_dynar_t xbt_str_split(const char *s, const char *sep) {
   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*), free_string);
+  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*), free_string);
+  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=2;
-  int cpt;
+  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)*(xbt_dynar_length(dyn));
+  len+=strlen(sep)*dyn_len;
   /* Do the job */
   res = xbt_malloc(len);
   p=res;
   xbt_dynar_foreach(dyn,cpt,cursor) {
-    p+=sprintf(p,"%s%s",cursor,sep);    
+    if ((int)cpt<dyn_len-1)
+      p+=sprintf(p,"%s%s",cursor,sep);    
+    else
+      p+=sprintf(p,"%s",cursor);    
   }
   return res;
 }
    
 #if !defined(HAVE_GETLINE) || defined(DOXYGEN)
+/* prototype here, just in case */
+long getline(char **buf, size_t *n, FILE *stream);
+
 /** @brief Get a single line from the stream (reimplementation of the GNU getline)
  * 
  * This is a redefinition of the GNU getline function, used on platforms where it does not exists.
@@ -272,7 +486,8 @@ char *xbt_str_join(xbt_dynar_t dyn, const char*sep) {
  */
 long getline(char **buf, size_t *n, FILE *stream) {
    
-   int i, ch;
+   size_t i;
+   int ch;
    
    if (!*buf) {
      *buf = xbt_malloc(512);
@@ -312,7 +527,8 @@ long getline(char **buf, size_t *n, FILE *stream) {
 static xbt_matrix_t diff_build_LCS(xbt_dynar_t da, xbt_dynar_t db) {
   xbt_matrix_t C = xbt_matrix_new(xbt_dynar_length(da),xbt_dynar_length(db),
 				  sizeof(int),NULL); 
-  int i,j;
+  unsigned long i,j;
+
   /* Compute the LCS */
   /*
     C = array(0..m, 0..n)
@@ -328,11 +544,13 @@ static xbt_matrix_t diff_build_LCS(xbt_dynar_t da, xbt_dynar_t db) {
                 C[i,j] := max(C[i,j-1], C[i-1,j])
     return C[m,n]
 	  */
-  for (i=0; i<xbt_dynar_length(da); i++) 
-    *((int*) xbt_matrix_get_ptr(C,i,0) ) = 0;
+  if (xbt_dynar_length(db) != 0)
+    for (i=0; i<xbt_dynar_length(da); i++) 
+      *((int*) xbt_matrix_get_ptr(C,i,0) ) = 0;
 
-  for (j=0; j<xbt_dynar_length(db); j++) 
-    *((int*) xbt_matrix_get_ptr(C,0,j) ) = 0;
+  if (xbt_dynar_length(da) != 0)
+    for (j=0; j<xbt_dynar_length(db); j++) 
+      *((int*) xbt_matrix_get_ptr(C,0,j) ) = 0;
 
   for (i=1; i<xbt_dynar_length(da); i++) 
     for (j=1; j<xbt_dynar_length(db); j++) {
@@ -371,7 +589,7 @@ static void diff_build_diff(xbt_dynar_t res,
     topush = bprintf("  %s",xbt_dynar_get_as(da,i,char*));
     xbt_dynar_push(res, &topush);
   } else if (j>=0 && 
-	     (i<=0 || xbt_matrix_get_as(C,i,j-1,int) >= xbt_matrix_get_as(C,i-1,j,int))) {
+	     (i<=0 ||j==0|| xbt_matrix_get_as(C,i,j-1,int) >= xbt_matrix_get_as(C,i-1,j,int))) {
     diff_build_diff(res,C,da,db,i,j-1);
     topush = bprintf("+ %s",xbt_dynar_get_as(db,j,char*));
     xbt_dynar_push(res,&topush);