moved from fluxbox source

src/FbTk/StringUtil.cc

@@ -0,0 +1,148 @@
+// StringUtil.cc for fluxbox 
+// Copyright (c) 2001 - 2003 Henrik Kinnunen (fluxgen<at>linuxmail.org)
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+// $Id: StringUtil.cc,v 1.1 2003/04/26 18:12:47 fluxgen Exp $
+
+#include "StringUtil.hh"
+
+#include <string>
+#include <cstdio>
+#include <cstdlib>
+#include <cctype>
+#include <cassert>
+#include <memory>
+
+using namespace std;
+
+namespace FbTk {
+
+namespace StringUtil {
+
+/**
+ Takes a pointer to string *s as an argument,
+ creates a new string n, copies s to n and
+ returns a pointer to n.
+*/
+char *strdup(const char *s) {
+    int l = strlen(s) + 1;
+    char *n = new char[l];
+    strncpy(n, s, l);
+    return n;
+}
+
+/**
+ Tries to find a string in another and
+ ignoring the case of the characters
+ Returns 0 on success else pointer to str.
+*/
+const char *strcasestr(const char *str, const char *ptn) {
+    const char *s2, *p2;
+    for( ; *str; str++) {
+        for(s2=str, p2=ptn; ; s2++,p2++) {	
+            // check if we reached the end of ptn, if so, return str
+            if (!*p2) 
+                return str;
+            // check if the chars match(ignoring case)
+            if (toupper(*s2) != toupper(*p2))
+                break; 
+        }
+    }
+    return 0;
+}
+
+/**
+ if ~ then expand it to home of user
+ returns expanded filename 
+*/
+string expandFilename(const std::string &filename) {
+  
+    string retval;
+    size_t pos = filename.find_first_not_of(" \t");
+    if (pos != std::string::npos && filename[pos] == '~') {  	
+    	retval = getenv("HOME");
+        if (pos != filename.size()) {
+            // copy from the character after '~'
+            retval += static_cast<const char *>(filename.c_str() + pos + 1);
+        }
+    } else
+        return filename; //return unmodified value
+  
+    return retval;
+}
+
+/**
+ Parses a string between "first" and "last" characters
+ and ignoring ok_chars as whitespaces. The value is
+ returned in "out".
+ Returns negative value on error and this value is the position 
+ in the in-string where the error occured.
+ Returns positive value on success and this value is
+ for the position + 1 in the in-string where the "last"-char value
+ was found.
+*/
+int getStringBetween(std::string& out, const char *instr, const char first, const char last,
+                     const char *ok_chars) {
+    assert(first);
+    assert(last);
+    assert(instr);
+	
+    std::string::size_type i = 0, 
+        total_add=0; //used to add extra if there is a \last to skip
+    std::string in(instr);
+	
+    // eat leading whitespace
+    i = in.find_first_not_of(ok_chars);
+    if (i == std::string::npos)
+        return -in.size();   // nothing left but whitespace
+
+    if (in[i]!=first)		
+        return -i; //return position to error	
+
+    // find the end of the token
+    std::string::size_type j = i;
+    while (1) {
+        j = in.find_first_of(last, j+1);
+        if (j==std::string::npos)
+            return -in.size(); //send negative size
+
+        //we found the last char, check so it doesn't have a '\' before
+        if (j>1 && in[j-1] != '\\')	
+            break;
+        else if (j>1) {
+            in.erase(j-1, 1); //remove the '\'
+            j--;
+            total_add++; //save numchars removed so we can calculate totalpos
+        }
+    }
+
+    out = in.substr(i+1, j-i-1); //copy the string between first and last		
+    //return value to last character
+    return (j+1+total_add);
+}
+
+void toLower(char * const conv) {
+    for (size_t byte_pos = 0; byte_pos < strlen(conv); ++byte_pos)
+        conv[byte_pos] = tolower(conv[byte_pos]);
+}
+
+}; // end namespace StringUtil
+
+}; // end namespace FbTk

src/FbTk/StringUtil.hh

@@ -0,0 +1,85 @@
+// StringUtil.hh for fluxbox 
+// Copyright (c) 2001 - 2003 Henrik Kinnunen (fluxgen(at)linuxmail.org)
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+//$Id: StringUtil.hh,v 1.1 2003/04/26 18:12:46 fluxgen Exp $
+
+#ifndef FBTK_STRINGUTIL_HH
+#define FBTK_STRINGUTIL_HH
+
+#include <string>
+
+namespace FbTk {
+
+namespace StringUtil {
+
+char *strdup(const char *);
+	
+/// Similar to `strstr' but this function ignores the case of both strings
+const char *strcasestr(const char *str, const char *ptn);
+
+/// expands ~ to value of ${HOME} enviroment variable
+std::string expandFilename(const std::string &filename);
+
+///  returns string between character first and last
+int getStringBetween(std::string& out, const char *instr, 
+                     char first, char last,
+                     const char *ok_chars=" \t\n");
+
+/// converts a string to lover case
+void toLower(char * const conv);
+
+
+/// Breaks a string into tokens
+template <typename Container>
+static void
+stringtok (Container &container, std::string const &in,
+           const char * const delimiters = " \t\n") {
+
+    const std::string::size_type len = in.length();
+    std::string::size_type i = 0;
+
+    while ( i < len ) {
+        // eat leading whitespace
+        i = in.find_first_not_of(delimiters, i);
+        if (i == std::string::npos)
+            return;   // nothing left but white space
+
+        // find the end of the token
+        std::string::size_type j = in.find_first_of(delimiters, i);
+
+        // push token
+        if (j == std::string::npos) {
+            container.push_back(in.substr(i));
+            return;
+        } else
+            container.push_back(in.substr(i, j-i));
+
+        // set up for next loop
+        i = j + 1;
+    }
+}
+
+}; // end namespace StringUtil
+
+}; // end namespace FbTk
+
+
+#endif // FBTK_STRINGUTIL_HH