From: ehofman <ehofman>
Date: Sat, 24 Sep 2005 12:31:41 +0000 (+0000)
Subject: Add an XML grep utility. It's far from complete but it allowed me to test the animati... 
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=fa2caf88dc3ee1689d8e9c0c065080cb16869788;p=flightgear.git

Add an XML grep utility. It's far from complete but it allowed me to test the animation files for the precense of the 'offset' element in the translation animation sections.
---

diff --git a/configure.ac b/configure.ac
index 656370445..8fc4a9aa6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -548,6 +548,7 @@ AC_CONFIG_FILES([ \
 	utils/js_server/Makefile \
 	utils/Modeller/Makefile \
 	utils/TerraSync/Makefile \
+	utils/xmlgrep/Makefile \
 ])
 AC_OUTPUT
 
diff --git a/utils/Makefile.am b/utils/Makefile.am
index 4393a1a97..01c92494e 100644
--- a/utils/Makefile.am
+++ b/utils/Makefile.am
@@ -1,4 +1,4 @@
-DIST_SUBDIRS = TerraSync Modeller js_server fgadmin
+DIST_SUBDIRS = TerraSync Modeller js_server fgadmin xmlgrep
 
 SUBDIRS = GPSsmooth TerraSync Modeller js_server
 
diff --git a/utils/xmlgrep/.cvsignore b/utils/xmlgrep/.cvsignore
new file mode 100644
index 000000000..608791a0c
--- /dev/null
+++ b/utils/xmlgrep/.cvsignore
@@ -0,0 +1,4 @@
+.deps
+Makefile
+Makefile.in
+xmlgrep
diff --git a/utils/xmlgrep/Makefile.am b/utils/xmlgrep/Makefile.am
new file mode 100644
index 000000000..4c0bbe2eb
--- /dev/null
+++ b/utils/xmlgrep/Makefile.am
@@ -0,0 +1,4 @@
+noinst_PROGRAMS = xmlgrep
+
+xmlgrep_SOURCES = xmlgrep.cxx
+xmlgrep_LDADD = -lsgstructure -lsgprops -lsgmisc -lsgdebug -lsgxml
diff --git a/utils/xmlgrep/xmlgrep.cxx b/utils/xmlgrep/xmlgrep.cxx
new file mode 100644
index 000000000..9b23f72f5
--- /dev/null
+++ b/utils/xmlgrep/xmlgrep.cxx
@@ -0,0 +1,249 @@
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <simgear/props/props.hxx>
+#include <simgear/props/props_io.hxx>
+#include <simgear/structure/exception.hxx>
+
+
+unsigned int _fcount = 0;
+char **_filenames = 0;
+char *_element = 0;
+char *_value = 0;
+char *_root = 0;
+char *_print = 0;
+
+int print_filenames = 0;
+
+#define DEBUG 0
+
+void free_and_exit(int i);
+
+
+#define SHOW_NOVAL(opt) \
+{ \
+   printf("option '%s' requires a value\n\n", (opt)); \
+   free_and_exit(-1); \
+}
+
+void show_help ()
+{
+  printf("usage: xmlgrep [options] [file ...]\n\n");
+  printf("Options:\n");
+  printf("\t-h\t\tshow this help message\n");
+  printf("\t-e <id>\t\tshow sections that contain this element\n");
+  printf("\t-p <id>\t\tprint this element as the output\n");
+  printf("\t-r <path>\tspecify the XML search root\n");
+  printf("\t-v <string>\tshow sections where on of the elements has this value \n");
+  printf("\n");
+  printf(" To print the contents of the 'type' element of the XML section ");
+  printf("that begins\n at '/printer/output' one would use the following ");
+  printf("syntax:\n\n\txmlgrep -r /printer/output -p type sample.xml\n\n");
+  printf(" To filter out sections that contain the 'driver' element with ");
+  printf("'generic' as\n it's value one would issue the following command:\n");
+  printf("\n\txmlgrep -r /printer/output -e driver -v generic -p type ");
+  printf("sample.xml\n\n");
+  free_and_exit(0);
+}
+
+void free_and_exit(int i)
+{
+   if (_root) free(_root);
+   if (_value) free(_value);
+   if (_element) free(_element);
+   if (_filenames)
+   {
+      for (i=0; i < _fcount; i++) {
+         if (_filenames[i]) {
+            if (print_filenames) printf("%s\n", _filenames[i]);
+            free(_filenames[i]);
+         }
+      }
+      free(_filenames);
+   }
+
+   exit(i);
+}
+
+int parse_option(char **args, int n, int max) {
+  char *opt, *arg = 0;
+  int sz;
+
+  opt = args[n];
+  if (opt[0] == '-' && opt[1] == '-')
+    opt++;
+
+  if ((arg = strchr(opt, '=')) != NULL)
+    *arg++ = 0;
+
+  else if (++n < max)
+  {
+    arg = args[n];
+    if (arg && arg[0] == '-')
+      arg = 0;
+  }
+
+#if DEBUG
+    fprintf(stderr, "processing '%s'='%s'\n", opt, arg ? arg : "NULL");
+#endif
+
+  sz = strlen(opt);
+  if (strncmp(opt, "-help", sz) == 0) {
+    show_help();
+  }
+
+  else if (strncmp(opt, "-root", sz) == 0) {
+    if (arg == 0) SHOW_NOVAL(opt);
+    _root = strdup(arg);
+#if DEBUG
+    fprintf(stderr, "\troot=%s\n", _root);
+#endif
+    return 2;
+  }
+
+  else if (strncmp(opt, "-element", sz) == 0) {
+    if (arg == 0) SHOW_NOVAL(opt);
+    _element = strdup(arg);
+#if DEBUG
+    fprintf(stderr, "\telement=%s\n", _element);
+#endif
+    return 2;
+  }
+
+  else if (strncmp(opt, "-value", sz) == 0) {
+    if (arg == 0) SHOW_NOVAL(opt);
+    _value = strdup(arg);
+#if DEBUG
+    fprintf(stderr, "\tvalue=%s\n", _value);
+#endif
+    return 2;
+  }
+
+  else if (strncmp(opt, "-print", sz) == 0) {
+    if (arg == 0) SHOW_NOVAL(opt);
+    _print = strdup(arg);
+#if DEBUG
+    fprintf(stderr, "\tprint=%s\n", _print);
+#endif
+    return 2;
+  }
+
+
+  /* undocumented test argument */
+  else if (strncmp(opt, "-list-filenames", sz) == 0) {
+    print_filenames = 1;
+    return 1;
+  }
+
+  else if (opt[0] == '-') {
+    printf("Unknown option %s\n", opt);
+    free_and_exit(-1);
+  }
+
+  else {
+    int pos = _fcount++;
+    if (_filenames == 0)
+      _filenames = (char **)malloc(sizeof(char*));
+    else {
+      char **ptr = (char **)realloc(_filenames, _fcount*sizeof(char*));
+      if (ptr == 0) {
+         printf("Out of memory.\n\n");
+         free_and_exit(-1);
+      }
+      _filenames = ptr;
+    }
+
+    _filenames[pos] = strdup(opt);
+#if DEBUG
+    fprintf(stderr, "\tadding filenames[%i]='%s'\n", pos, _filenames[pos]);
+#endif
+  }
+
+  return 1;
+}
+
+void grep_file(unsigned num)
+{
+   SGPropertyNode root, *path;
+
+#if DEBUG
+   fprintf(stderr, "Reading filenames[%i]: %s ... ", num, _filenames[num]);
+#endif
+   try {
+      readProperties(_filenames[num], &root);
+   } catch (const sg_exception &e) {
+      fprintf(stderr, "Error reading file '%s'\n", _filenames[num]);
+      // free_and_exit(-1);
+      return;
+   }
+#if DEBUG
+   fprintf(stderr, "done.\n");
+#endif
+
+   if ((path = root.getNode(_root, false)) != NULL)
+   {
+      SGPropertyNode *elem;
+
+      if (_element && _value)
+      {
+         if ((elem = path->getNode(_element, false)) != NULL)
+         {
+            if (strcmp(elem->getStringValue(), _value) == NULL)
+            {
+               SGPropertyNode *print = path->getNode(_print, false);
+               if (print)
+               {
+                  printf("%s: <%s>%s</%s>\n", _filenames[num],
+                                   _print, print->getStringValue(), _print);
+               }
+            }
+         }
+      }
+      else if (_element)
+      {
+      }
+      else if (_value)
+      {
+      }
+   }
+#if DEBUG
+   else
+      fprintf(stderr," No root node specified.\n");
+#endif
+}
+
+inline void grep_files()
+{
+#if DEBUG
+   fprintf(stderr, "Reading files ...\n");
+#endif
+   for (int i=0; i<_fcount; i++)
+      grep_file(i);
+}
+
+int
+main (int argc, char **argv)
+{
+   int i;
+
+   if (argc == 1)
+      show_help();
+
+   for (i=1; i<argc;)
+   {
+      int ret = parse_option(argv, i, argc);
+      i += ret;
+#if DEBUG
+      fprintf(stderr, "%i arguments processed.\n", ret);
+#endif
+   }
+
+
+   grep_files();
+
+   free_and_exit(0);
+
+   return 0;
+}