kc3-lang/pkgconf/libpkgconf/fileio.c

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• Hash : a4de2930
  Author :
  Date : 2025-02-03T05:31:40
  

  libpkgconf: fileio: use bool for fgetline return type instead of a pointer
  
  (we internally look at the raw buffer anyway)
  
  Signed-off-by: Ariadne Conill <ariadne@ariadne.space>
  

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• libpkgconf/fileio.c

• /*
   * fileio.c
   * File reading utilities
   *
   * Copyright (c) 2012, 2025 pkgconf authors (see AUTHORS).
   *
   * Permission to use, copy, modify, and/or distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * This software is provided 'as is' and without any warranty, express or
   * implied.  In no event shall the authors be liable for any damages arising
   * from the use of this software.
   */
  
  #include <libpkgconf/stdinc.h>
  #include <libpkgconf/libpkgconf.h>
  
  bool
  pkgconf_fgetline(pkgconf_buffer_t *buffer, FILE *stream)
  {
  	bool quoted = false;
  	int c = '\0', c2;
  
  	while ((c = getc(stream)) != EOF)
  	{
  		if (c == '\\' && !quoted)
  		{
  			quoted = true;
  			continue;
  		}
  		else if (c == '#')
  		{
  			if (!quoted) {
  				/* Skip the rest of the line */
  				do {
  					c = getc(stream);
  				} while (c != '\n' && c != EOF);
  				pkgconf_buffer_push_byte(buffer, c);
  				break;
  			}
  			else
  				pkgconf_buffer_push_byte(buffer, c);
  
  			quoted = false;
  			continue;
  		}
  		else if (c == '\n')
  		{
  			if (quoted)
  			{
  				/* Trim spaces */
  				do {
  					c2 = getc(stream);
  				} while (c2 == '\t' || c2 == ' ');
  
  				ungetc(c2, stream);
  
  				quoted = false;
  				continue;
  			}
  			else
  			{
  				pkgconf_buffer_push_byte(buffer, c);
  			}
  
  			break;
  		}
  		else if (c == '\r')
  		{
  			pkgconf_buffer_push_byte(buffer, '\n');
  
  			if ((c2 = getc(stream)) == '\n')
  			{
  				if (quoted)
  				{
  					quoted = false;
  					continue;
  				}
  
  				break;
  			}
  
  			ungetc(c2, stream);
  
  			if (quoted)
  			{
  				quoted = false;
  				continue;
  			}
  
  			break;
  		}
  		else
  		{
  			if (quoted) {
  				pkgconf_buffer_push_byte(buffer, '\\');
  				quoted = false;
  			}
  			pkgconf_buffer_push_byte(buffer, c);
  		}
  
  	}
  
  
  	if (c == EOF && ((!buffer->base || !*buffer->base) || ferror(stream)))
  		return false;
  
  	/* Remove newline character. */
  	if (pkgconf_buffer_lastc(buffer) == '\n')
  		pkgconf_buffer_trim_byte(buffer);
  
  	if (pkgconf_buffer_lastc(buffer) == '\r')
  		pkgconf_buffer_trim_byte(buffer);
  
  	return true;
  }
  

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