diff options
Diffstat (limited to 'parser.h')
| -rw-r--r-- | parser.h | 156 |
1 files changed, 116 insertions, 40 deletions
@@ -1,62 +1,138 @@ #ifndef _PARSER_H #define _PARSER_H -#include <iostream> -#include <string> - -#include "error.h" +#include "utils.h" namespace ledger { class account_t; class journal_t; -class config_t; +class session_t; -class parser_t +class parser_t : public noncopyable { - public: - virtual ~parser_t() {} +public: + parser_t() { + TRACE_CTOR(parser_t, ""); + } + virtual ~parser_t() { + TRACE_DTOR(parser_t); + } virtual bool test(std::istream& in) const = 0; - virtual unsigned int parse(std::istream& in, - config_t& config, - journal_t * journal, - account_t * master = NULL, - const std::string * original_file = NULL) = 0; + virtual unsigned int parse(std::istream& in, + session_t& session, + journal_t& journal, + account_t * master = NULL, + const path * original_file = NULL) = 0; }; -bool register_parser(parser_t * parser); -bool unregister_parser(parser_t * parser); - -unsigned int parse_journal(std::istream& in, - config_t& config, - journal_t * journal, - account_t * master = NULL, - const std::string * original_file = NULL); - -unsigned int parse_journal_file(const std::string& path, - config_t& config, - journal_t * journal, - account_t * master = NULL, - const std::string * original_file = NULL); - -unsigned int parse_ledger_data(config_t& config, - journal_t * journal, - parser_t * cache_parser = NULL, - parser_t * xml_parser = NULL, - parser_t * stdin_parser = NULL); - -void initialize_parser_support(); -void shutdown_parser_support(); - -class parse_error : public error { - public: - parse_error(const std::string& reason, error_context * ctxt = NULL) throw() +unsigned int parse_journal(std::istream& in, + session_t& session, + journal_t& journal, + account_t * master = NULL, + const path * original_file = NULL); + +unsigned int parse_journal_file(const path& path, + session_t& session, + journal_t& journal, + account_t * master = NULL, + const path * original_file = NULL); + +unsigned int parse_ledger_data(session_t& session, + journal_t& journal, + parser_t * cache_parser = NULL, + parser_t * xml_parser = NULL, + parser_t * stdin_parser = NULL); + +class parse_error : public error +{ +public: + parse_error(const string& reason, error_context * ctxt = NULL) throw() : error(reason, ctxt) {} virtual ~parse_error() throw() {} }; +/************************************************************************ + * + * General utility parsing functions + */ + +inline char * skip_ws(char * ptr) { + while (*ptr == ' ' || *ptr == '\t' || *ptr == '\n') + ptr++; + return ptr; +} + +inline char * next_element(char * buf, bool variable = false) { + for (char * p = buf; *p; p++) { + if (! (*p == ' ' || *p == '\t')) + continue; + + if (! variable) { + *p = '\0'; + return skip_ws(p + 1); + } + else if (*p == '\t') { + *p = '\0'; + return skip_ws(p + 1); + } + else if (*(p + 1) == ' ') { + *p = '\0'; + return skip_ws(p + 2); + } + } + return NULL; +} + +inline char peek_next_nonws(std::istream& in) { + char c = in.peek(); + while (! in.eof() && std::isspace(c)) { + in.get(c); + c = in.peek(); + } + return c; +} + +#define READ_INTO(str, targ, size, var, cond) { \ + char * _p = targ; \ + var = str.peek(); \ + while (! str.eof() && var != '\n' && (cond) && _p - targ < size) { \ + str.get(var); \ + if (str.eof()) \ + break; \ + if (var == '\\') { \ + str.get(var); \ + if (in.eof()) \ + break; \ + } \ + *_p++ = var; \ + var = str.peek(); \ + } \ + *_p = '\0'; \ +} + +#define READ_INTO_(str, targ, size, var, idx, cond) { \ + char * _p = targ; \ + var = str.peek(); \ + while (! str.eof() && var != '\n' && (cond) && _p - targ < size) { \ + str.get(var); \ + if (str.eof()) \ + break; \ + idx++; \ + if (var == '\\') { \ + str.get(var); \ + if (in.eof()) \ + break; \ + idx++; \ + } \ + *_p++ = var; \ + var = str.peek(); \ + } \ + *_p = '\0'; \ +} + } // namespace ledger #endif // _PARSER_H |