thodg/libgit2/src/parse.h

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• Hash : 27b8b31e
  Author :
  Date : 2019-08-01T11:57:03
  

  parse: remove use of variadic macros which are not C89 compliant The macro `git_parse_error` is implemented in a variadic way so that it's possible to pass printf-style parameters. Unfortunately, variadic macros are not defined by C89 and thus we cannot use that functionality. But as we have implemented `git_error_vset` in the previous commit, we can now just use that instead. Convert `git_parse_error` to a variadic function and use `git_error_vset` to fix the compliance violation. While at it, move the function to "patch_parse.c".

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• src/parse.h

• /*
   * Copyright (C) the libgit2 contributors. All rights reserved.
   *
   * This file is part of libgit2, distributed under the GNU GPL v2 with
   * a Linking Exception. For full terms see the included COPYING file.
   */
  #ifndef INCLUDE_parse_h__
  #define INCLUDE_parse_h__
  
  #include "common.h"
  
  typedef struct {
  	/* Original content buffer */
  	const char *content;
  	size_t content_len;
  
  	/* The remaining (unparsed) buffer */
  	const char *remain;
  	size_t remain_len;
  
  	const char *line;
  	size_t line_len;
  	size_t line_num;
  } git_parse_ctx;
  
  #define GIT_PARSE_CTX_INIT { 0 }
  
  int git_parse_ctx_init(git_parse_ctx *ctx, const char *content, size_t content_len);
  void git_parse_ctx_clear(git_parse_ctx *ctx);
  
  #define git_parse_ctx_contains_s(ctx, str) \
  	git_parse_ctx_contains(ctx, str, sizeof(str) - 1)
  
  GIT_INLINE(bool) git_parse_ctx_contains(
  	git_parse_ctx *ctx, const char *str, size_t len)
  {
  	return (ctx->line_len >= len && memcmp(ctx->line, str, len) == 0);
  }
  
  void git_parse_advance_line(git_parse_ctx *ctx);
  void git_parse_advance_chars(git_parse_ctx *ctx, size_t char_cnt);
  int git_parse_advance_expected(
  	git_parse_ctx *ctx,
  	const char *expected,
  	size_t expected_len);
  
  #define git_parse_advance_expected_str(ctx, str) \
  	git_parse_advance_expected(ctx, str, strlen(str))
  
  int git_parse_advance_ws(git_parse_ctx *ctx);
  int git_parse_advance_nl(git_parse_ctx *ctx);
  int git_parse_advance_digit(int64_t *out, git_parse_ctx *ctx, int base);
  
  enum GIT_PARSE_PEEK_FLAGS {
  	GIT_PARSE_PEEK_SKIP_WHITESPACE = (1 << 0)
  };
  
  int git_parse_peek(char *out, git_parse_ctx *ctx, int flags);
  
  #endif
  

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