diff options
Diffstat (limited to 'serd')
| -rw-r--r-- | serd/serd.h | 85 |
1 files changed, 77 insertions, 8 deletions
diff --git a/serd/serd.h b/serd/serd.h index acf154a4..0a05c395 100644 --- a/serd/serd.h +++ b/serd/serd.h @@ -69,6 +69,11 @@ typedef struct SerdWorldImpl SerdWorld; typedef struct SerdStatementImpl SerdStatement; /** + Cursor, the origin of a statement in a document. +*/ +typedef struct SerdCursorImpl SerdCursor; + +/** Environment. Represents the state required to resolve a CURIE or relative URI, e.g. the @@ -255,12 +260,10 @@ typedef struct { An error description. */ typedef struct { - SerdStatus status; /**< Error code */ - const char* filename; /**< File where error was encountered, or NULL */ - unsigned line; /**< Line where error was encountered, or 0 */ - unsigned col; /**< Column where error was encountered */ - const char* fmt; /**< Message format string (printf style) */ - va_list* args; /**< Arguments for fmt */ + SerdStatus status; /**< Error code */ + const SerdCursor* cursor; /**< Origin of error, or NULL */ + const char* fmt; /**< Message format string (printf style) */ + va_list* args; /**< Arguments for fmt */ } SerdError; /** @@ -1112,7 +1115,7 @@ serd_reader_start_stream(SerdReader* reader, SerdReadFunc read_func, SerdStreamErrorFunc error_func, void* stream, - const char* name, + const SerdNode* name, size_t page_size); /** @@ -1120,7 +1123,9 @@ serd_reader_start_stream(SerdReader* reader, */ SERD_API SerdStatus -serd_reader_start_string(SerdReader* reader, const char* utf8); +serd_reader_start_string(SerdReader* reader, + const char* utf8, + const SerdNode* name); /** Read a single "chunk" of data during an incremental read. @@ -1303,6 +1308,70 @@ serd_statement_get_graph(const SerdStatement* statement); /** @} + @name Cursor + @{ +*/ + +/** + Create a new cursor + + Note that, to minimise model overhead, the cursor does not own the name + node, so `name` must have a longer lifetime than the cursor for it to be + valid. That is, serd_cursor_get_name() will return exactly the pointer + `name`, not a copy. For cursors from models, this is the lifetime of the + model. For user-created cursors, the simplest way to handle this is to use + `SerdNodes`. + + @param name The name of the document or stream (usually a file URI) + @param line The line number in the document (1-based) + @param col The column number in the document (1-based) + @return A new cursor that must be freed with serd_cursor_free() +*/ +SERD_API +SerdCursor* +serd_cursor_new(const SerdNode* name, unsigned line, unsigned col); + +/// Return a copy of `cursor` +SERD_API +SerdCursor* +serd_cursor_copy(const SerdCursor* cursor); + +/// Free `cursor` +SERD_API +void +serd_cursor_free(SerdCursor* cursor); + +/// Return true iff `lhs` is equal to `rhs` +SERD_API +bool +serd_cursor_equals(const SerdCursor* lhs, const SerdCursor* rhs); + +/** + Return the document name. + + This is typically a file URI, but may be a descriptive string node for + statements that originate from streams. +*/ +SERD_API +const SerdNode* +serd_cursor_get_name(const SerdCursor* cursor); + +/** + Return the one-relative line number in the document. +*/ +SERD_API +unsigned +serd_cursor_get_line(const SerdCursor* cursor); + +/** + Return the zero-relative column number in the line. +*/ +SERD_API +unsigned +serd_cursor_get_column(const SerdCursor* cursor); + +/** + @} @} */ |