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| author | John Wiegley <johnw@newartisans.com> | 2009-02-21 19:52:31 -0400 |
|---|---|---|
| committer | John Wiegley <johnw@newartisans.com> | 2009-02-21 20:20:57 -0400 |
| commit | 66c5cd44277863708fdc81a6418bc84215b0c269 (patch) | |
| tree | f78fdbae25244af9260466e2ab01cc3e131491f2 /src/error.h | |
| parent | a577e8c48ebe3b540a6833e1d37025d53c8a42a7 (diff) | |
| download | fork-ledger-66c5cd44277863708fdc81a6418bc84215b0c269.tar.gz fork-ledger-66c5cd44277863708fdc81a6418bc84215b0c269.tar.bz2 fork-ledger-66c5cd44277863708fdc81a6418bc84215b0c269.zip | |
Use a "format accumulator" for error strings
This makes it possible to internationalize strings while still using
I/O streams. For example:
std::cout << ACCUM(_("Hello to %1 and %2!") << "me" << "you")
<< std::endl;
Diffstat (limited to 'src/error.h')
| -rw-r--r-- | src/error.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/src/error.h b/src/error.h index 568e509a..2c0c4d09 100644 --- a/src/error.h +++ b/src/error.h @@ -46,8 +46,11 @@ #ifndef _ERROR_H #define _ERROR_H +#include "accum.h" + namespace ledger { +extern straccstream _desc_accum; extern std::ostringstream _desc_buffer; template <typename T> @@ -56,14 +59,20 @@ inline void throw_func(const string& message) { throw T(message); } -#define throw_(cls, msg) \ - ((_desc_buffer << msg), throw_func<cls>(_desc_buffer.str())) +#define throw_(cls, msg) \ + ((_desc_buffer << ACCUM(_desc_accum << msg)), \ + _desc_accum.clear(), \ + throw_func<cls>(_desc_buffer.str())) +extern straccstream _ctxt_accum; extern std::ostringstream _ctxt_buffer; #define add_error_context(msg) \ ((long(_ctxt_buffer.tellp()) == 0) ? \ - (_ctxt_buffer << msg) : (_ctxt_buffer << std::endl << msg)) + ((_ctxt_buffer << ACCUM(_ctxt_accum << msg)), \ + _ctxt_accum.clear()) : \ + ((_ctxt_buffer << std::endl << ACCUM(_ctxt_accum << msg)), \ + _ctxt_accum.clear())) string error_context(); |