Changeset 24110

Timestamp:

2011-06-03T09:19:39+12:00 (13 years ago)

Author:

sjm84

Message:

Added a trim function to text_t that removes leading and trailing whitespace

Location:

main/trunk/greenstone2/common-src/src/lib

Files:

• text_t.cpp (modified) (2 diffs)
• text_t.h (modified) (1 diff)

main/trunk/greenstone2/common-src/src/lib/text_t.cpp

@@ -51 +51 @@
 
 #include "unitool.h"
+#include <iostream>
 
 const text_t g_EmptyText("");
@@ -711 +712 @@
 }
 
+//Trims the whitespace off the beginning and end of a given string
+text_t trim (const text_t& text) {
+
+  if(text.size() == 0) {
+    return text;
+  }
+
+  text_t::const_iterator firstLetter = text.begin();
+  text_t::const_iterator lastLetter = text.end();
+  
+  //Find the start
+  while (firstLetter != lastLetter) {
+    if(!is_unicode_space(*firstLetter)) {
+      break;
+    }
+    firstLetter++;
+  }
+
+  //Find the end
+  while (lastLetter != firstLetter) {
+    if(!is_unicode_space(*lastLetter)) {
+      break; 
+    }
+    lastLetter--;
+  } 
+
+  return substr(firstLetter, lastLetter+1);
+}
 
 ////////////////////////////////////

main/trunk/greenstone2/common-src/src/lib/text_t.h

@@ -289 +289 @@
 bool ends_with(const text_t& text, const text_t& suffix);
 
+// trims whitespace of the front and end of the string
+text_t trim(const text_t& text);
+
 // conversion classes used for getting information in to and out of
 // the text_t class.