Adding a formater (I think)

README

@@ -0,0 +1,4 @@
+Unsupported:
+    namespaces
+    attributes with semi quotes (') instead of quoetes (")
+    comments

src/xmlparser.c

@@ -5,11 +5,60 @@
 ** xmlparser
 */
 
+#include "my.h"
 #include "xml.h"
 #include <stdlib.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <sys/stat.h>
+#include <stdbool.h>
+
+bool is_space_usefull(char *nodestr, int i)
+{
+    if (i == 0 || !is_alphanum(nodestr[i - 1]))
+        return (false);
+    if (i + 1 == my_strlen(nodestr) || !is_alphanum(i + 1))
+        return (false);
+    return (true);
+}
+
+int xml_handle_prolog(char **nodestr)
+{
+    char *strconst = *nodestr;
+
+    if (my_strstr(*nodestr, "<?xml") == *nodestr)
+        *nodestr = my_strstr(*nodestr, "?>");
+    if (!*nodestr) {
+        free(strconst);
+        return (-1);
+    }
+    return (0);
+}
+
+node *xml_parsestr(char *nodestr)
+{
+    node *n;
+    char *strconst = nodestr;
+
+    if (xml_handle_prolog(&nodestr) < 0)
+        return (NULL);
+    for (int i = 0; nodestr[i]; i++) {
+        if (nodestr[i] == ' ') {
+            if (!is_space_usefull(nodestr, i))
+                nodestr[i] = '\t';
+        }
+    }
+    for (int i = 0; nodestr[i]; i++) {
+        if (nodestr[i] == '\t' || nodestr[i] == '\n') {
+            nodestr[i] = nodestr[i + 1];
+            nodestr[i + 1] = '\t';
+            i = 0;
+        }
+    }
+    n = xml_parsenode(&nodestr);
+    free(strconst);
+    return (n);
+}
 
 node *xmlparse(char *path)
 {
@@ -17,7 +66,6 @@ node *xmlparse(char *path)
     int fd = open(path, O_RDONLY);
     struct stat stats;
     char *nodestr;
-    char *strconst;
     int count;
 
     if (fd < 0)
@@ -26,11 +74,8 @@ node *xmlparse(char *path)
     nodestr = malloc(stats.st_size);
     if (nodestr) {
         count = read(fd, nodestr, stats.st_size);
-        if (count == stats.st_size) {
-            strconst = nodestr;
-            n = xml_parsenode(&nodestr);
-        }
-        free(strconst);
+        if (count == stats.st_size)
+            n = xml_parsestr(nodestr);
     }
     close(fd);
     return (n);

tests/xmltest.txt

@@ -1 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <yes><nop/></yes>