86 lines
1.8 KiB
C++
86 lines
1.8 KiB
C++
#ifndef _PARSER_H
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#define _PARSER_H
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#include "utils.h"
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namespace ledger {
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class account_t;
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class journal_t;
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class parser_t
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{
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public:
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virtual ~parser_t() {}
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virtual bool test(std::istream& in) const = 0;
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virtual unsigned int parse(std::istream& in,
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journal_t * journal,
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account_t * master = NULL,
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const string * original_file = NULL) = 0;
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};
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DECLARE_EXCEPTION(parse_exception);
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/************************************************************************
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*
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* General utility parsing functions
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*/
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inline char * skip_ws(char * ptr) {
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while (*ptr == ' ' || *ptr == '\t' || *ptr == '\n')
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ptr++;
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return ptr;
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}
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inline char peek_next_nonws(std::istream& in) {
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char c = in.peek();
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while (! in.eof() && std::isspace(c)) {
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in.get(c);
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c = in.peek();
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}
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return c;
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}
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#define READ_INTO(str, targ, size, var, cond) { \
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char * _p = targ; \
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var = str.peek(); \
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while (! str.eof() && var != '\n' && (cond) && _p - targ < size) { \
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str.get(var); \
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if (str.eof()) \
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break; \
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if (var == '\\') { \
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str.get(var); \
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if (in.eof()) \
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break; \
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} \
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*_p++ = var; \
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var = str.peek(); \
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} \
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*_p = '\0'; \
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}
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#define READ_INTO_(str, targ, size, var, idx, cond) { \
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char * _p = targ; \
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var = str.peek(); \
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while (! str.eof() && var != '\n' && (cond) && _p - targ < size) { \
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str.get(var); \
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if (str.eof()) \
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break; \
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idx++; \
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if (var == '\\') { \
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str.get(var); \
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if (in.eof()) \
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break; \
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idx++; \
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} \
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*_p++ = var; \
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var = str.peek(); \
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} \
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*_p = '\0'; \
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}
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} // namespace ledger
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#endif // _PARSER_H
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