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Viewing changes to src/timezone/scheck.c

  • Committer: Package Import Robot
  • Author(s): Martin Pitt
  • Date: 2013-05-08 05:39:52 UTC
  • Revision ID: package-import@ubuntu.com-20130508053952-1j7uilp7mjtrvq8q
Tags: upstream-9.3~beta1
Import upstream version 9.3~beta1

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src/timezone/scheck.c
 
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/*
 
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 * This file is in the public domain, so clarified as of
 
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 * 2006-07-17 by Arthur David Olson.
 
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 *
 
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 * IDENTIFICATION
 
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 *        src/timezone/scheck.c
 
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 */
 
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#include "postgres_fe.h"
 
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#include "private.h"
 
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const char *
 
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scheck(const char *string, const char *format)
 
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{
 
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        char       *fbuf;
 
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        const char *fp;
 
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        char       *tp;
 
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        int                     c;
 
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        const char *result;
 
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        char            dummy;
 
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        result = "";
 
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        if (string == NULL || format == NULL)
 
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                return result;
 
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        fbuf = imalloc((int) (2 * strlen(format) + 4));
 
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        if (fbuf == NULL)
 
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                return result;
 
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        fp = format;
 
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        tp = fbuf;
 
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        while ((*tp++ = c = *fp++) != '\0')
 
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        {
 
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                if (c != '%')
 
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                        continue;
 
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                if (*fp == '%')
 
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                {
 
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                        *tp++ = *fp++;
 
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                        continue;
 
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                }
 
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                *tp++ = '*';
 
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                if (*fp == '*')
 
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                        ++fp;
 
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                while (is_digit(*fp))
 
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                        *tp++ = *fp++;
 
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                if (*fp == 'l' || *fp == 'h')
 
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                        *tp++ = *fp++;
 
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                else if (*fp == '[')
 
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                        do
 
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                                *tp++ = *fp++;
 
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                        while (*fp != '\0' && *fp != ']');
 
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                if ((*tp++ = *fp++) == '\0')
 
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                        break;
 
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        }
 
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        *(tp - 1) = '%';
 
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        *tp++ = 'c';
 
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        *tp = '\0';
 
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        if (sscanf(string, fbuf, &dummy) != 1)
 
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                result = (char *) format;
 
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        ifree(fbuf);
 
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        return result;
 
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}