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6. ctags for PHP ! Surprise!!!Tags are extremely valuable and are used for navigation of source code inside the editors like vi, emacs, CRiSP, NEdit etc... If you had programmed a lot in C, C++ or Java you might have used the ctags program to create tags. To see the online manual page, type 'man ctags' at linux/unix bash prompt. The ptags program for PHP is given below, which you can use to create the tags for PHP source code. Your productivity will improve 3 to 4 times if you use ptags. See also Vim color text editor for PHP, C, C++ at http://metalab.unc.edu/LDP/HOWTO/Vim-HOWTO.html
// Save this file as ptags.cpp and compile by
// g++ -o ptags ptags.cpp
//*****************************************************************
// Copyright policy is GNU/GPL but additional request is
// that you include author's name and email on all copies
// Author : Al Dev Email: alavoor@yahoo.com
// Usage : ptags *.php3 *.inc
// This will generate a file called tags
//*****************************************************************
#include <iostream.h>
#include <fstream>
#include <stdio.h> // for sprintf
#include <stdlib.h> // for system
#include <string.h> // for memset
#include <ctype.h> // for isspace
#define BUFF_LEN 1024
#define LOCATION 9
char *ltrim(char *dd);
char *rtrim(char *ee);
main(int argc, char **argv)
{
if (argc < 2)
{
cerr << "\nUsage: " << argv[0] << " file .... " << endl;
exit(0);
}
char fname[100] = "tag_file.out";
FILE *fpout;
ofstream fout(fname);
if (fout.fail())
{
cerr << "\nError opening file : " << fname << endl;
exit(-1);
}
//fpout = fopen(fname, "w");
for (int ii = 1; ii < argc; ii++)
{
/*
char buff[2024];
sprintf(buff, "\\rm -f %s; ls %s > %s 2>/dev/null", outfile, argv[1], outfile);
cout << "\nbuff = " << buff << endl;
system(buff);
fclose(fp);
*/
FILE *fpin = NULL;
fpin = fopen(argv[ii], "r");
if (fpin == NULL)
{
cerr << "\nError opening file : " << argv[ii] << endl;
exit(-1);
}
char buff[BUFF_LEN + 100];
memset(buff, 0, BUFF_LEN +10);
for ( ; fgets(buff, BUFF_LEN, fpin) != NULL; )
{
char aa[BUFF_LEN + 100];
char aapointer[BUFF_LEN + 100];
memset(aa, 0, BUFF_LEN +10);
strcpy(aa, buff);
strcpy(aapointer, ltrim(aa));
strcpy(aa, aapointer);
// Remove the trailing new line..
{
int tmpii = strlen(aa);
if (aa[tmpii-1] == '\n')
aa[tmpii-1] = 0;
}
//cout << "aa is : " << aa << endl;
//cout << "aapointer is : " << aapointer << endl;
if (strncmp(aa, "function ", LOCATION) != 0)
continue;
//cout << buff << endl;
// Example tags file output is like -
// al2 al.c /^al2()$/;" f
{
char bb[BUFF_LEN + 100];
memset(bb, 0, BUFF_LEN +10);
strcpy(bb, & aa[LOCATION]);
char *cc = bb;
while (cc != NULL && *cc != '(')
*cc++;
*cc = 0;
cc = rtrim(bb);
//cout << "bb is : " << bb << endl;
//cout << cc << "\t" << argv[ii] << "\t" << "/^" << aa << "$/;\"\tf" << endl;
fout << cc << "\t" << argv[ii] << "\t" << "/^" << aa << "$/;\"\tf" << endl;
//fprintf(fpout, "%s\t%s\t/^%s$/;\"f\n", cc, argv[ii], aa );
}
memset(buff, 0, BUFF_LEN +10);
}
fclose(fpin);
}
fout.flush();
fout.close();
//fclose(fpout);
// Sort and generate the tag file
{
char tmpaa[1024];
sprintf(tmpaa, "sort %s > tags; \\rm -f %s", fname, fname);
system(tmpaa);
}
}
char *ltrim(char *dd)
{
if (dd == NULL)
return NULL;
while (isspace(*dd))
dd++;
return dd;
}
char *rtrim(char *ee)
{
if (ee == NULL)
return NULL;
int tmpii = strlen(ee) - 1;
for (; tmpii >= 0 ; tmpii--)
{
if (isspace(ee[tmpii]) )
{
//cout << "\nis a space!!" << endl;
ee[tmpii] = 0;
}
}
return ee;
}
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