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text: docs

This commit is contained in:
tg(x) 2011-05-04 01:30:09 +02:00
parent 259b51966c
commit 3cebf9b4c3
3 changed files with 80 additions and 25 deletions

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@ -7,7 +7,7 @@
*/
/**
* @defgroup parsing Parsing Functions
* @defgroup parser Parsing Functions
*
* This module contains all parsing functions.
* @{
@ -126,9 +126,9 @@ typedef struct
} psycParseListState;
/**
* Initiates the state struct.
* Initializes the state struct.
*
* @param state Pointer to the state struct that should be initiated.
* @param state Pointer to the state struct that should be initialized.
*/
static inline
void psyc_initParseState (psycParseState* state)
@ -137,9 +137,9 @@ void psyc_initParseState (psycParseState* state)
}
/**
* Initiates the state struct with flags.
* Initializes the state struct with flags.
*
* @param state Pointer to the state struct that should be initiated.
* @param state Pointer to the state struct that should be initialized.
* @param flags Flags to be set for the parser, see psycParseFlag.
*/
static inline
@ -187,9 +187,9 @@ void psyc_setParseBuffer2 (psycParseState* state, char *buffer, size_t length)
}
/**
* Initiates the list state struct.
* Initializes the list state struct.
*
* @param state Pointer to the list state struct that should be initiated.
* @param state Pointer to the list state struct that should be initialized.
*/
static inline
void psyc_initParseListState (psycParseListState* state)
@ -241,4 +241,4 @@ psycParseListRC psyc_parseList (psycParseListState* state, psycString *name, psy
#endif // PSYC_PARSER_H
/** @} */ // end of parsing group
/** @} */ // end of parser group

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@ -12,7 +12,7 @@
*/
/**
* @defgroup rendering Rendering Functions
* @defgroup render Rendering Functions
*
* This module contains all rendering functions.
* @{
@ -40,4 +40,4 @@ psycRenderRC psyc_renderList (psycList *list, char *buffer, size_t buflen);
#endif // PSYC_RENDER_H
/** @} */ // end of rendering group
/** @} */ // end of render group

View file

@ -1,18 +1,41 @@
/**
* The return value definitions for the PSYC text parsing function.
* @see psyc_text()
* @file psyc/text.h
* @brief Interface for text template rendering.
*
* All text template functions and the definitions they use are
* defined in this file.
*/
/**
* @defgroup text Text template functions
*
* This module contains all text template functions.
* @{
*/
/**
* Return values for the text template parsing function.
* @see psyc_text()
*/
typedef enum
{
/// No substitution was made, nothing was written to the buffer.
PSYC_TEXT_NO_SUBST = -1,
/// Text template parsing & rendering complete.
PSYC_TEXT_COMPLETE = 0,
/// Text template parsing & rendering is incomplete, because the buffer was too small.
/// Another call is required to this function with a new buffer.
PSYC_TEXT_INCOMPLETE = 1,
} psycTextRC;
/**
* Return values for psycTextCB.
*/
typedef enum
{
/// Value not found, don't substitute anything.
PSYC_TEXT_VALUE_NOT_FOUND = -1,
/// Value found, substitute contents of the value variable.
PSYC_TEXT_VALUE_FOUND = 0,
} psycTextValueRC;
@ -33,13 +56,23 @@ typedef struct
* Callback for psyc_text() that produces a value for a match.
*
* The application looks up a match such as _fruit from [_fruit] and
* if found writes its current value from its variable store into the
* outgoing buffer.. "Apple" for example. The template returns the
* number of bytes written. 0 is a legal return value. Should the
* callback return -1, psyc_text leaves the original template text as is.
* if found sets value->ptr & value->length to point to the found value,
* "Apple" for example. 0 is a legal value for the length.
* The callbacks returns either PSYC_TEXT_VALUE_FOUND or
* PSYC_TEXT_VALUE_NOT_FOUND if no match found in which case psyc_text
* leaves the original template text as is.
*/
typedef psycTextValueRC (*psycTextCB)(const char *name, size_t len, psycString *value);
/**
* Initializes the PSYC text state struct.
*
* @param state Pointer to the PSYC text state struct that should be initialized.
* @param template Text template to be parsed.
* @param tlen Length of template.
* @param buffer Buffer where the rendered text is going to be written.
* @param blen Length of buffer.
*/
static inline
void psyc_initTextState (psycTextState *state,
char *template, size_t tlen,
@ -52,6 +85,19 @@ void psyc_initTextState (psycTextState *state,
state->close = psyc_newString("]", 1);
}
/**
* Initializes the PSYC text state struct with custom open & closing braces.
*
* @param state Pointer to the PSYC text state struct that should be initialized.
* @param template Text template to be parsed.
* @param tlen Length of template.
* @param buffer Buffer where the rendered text is going to be written.
* @param blen Length of buffer.
* @param open Opening brace.
* @param openlen Length of opening brace.
* @param close Closing brace.
* @param closelen Length of closing brace.
*/
static inline
void psyc_initTextState2 (psycTextState* state,
char *template, size_t tlen,
@ -65,6 +111,9 @@ void psyc_initTextState2 (psycTextState* state,
state->close = psyc_newString(close, closelen);
}
/**
* Sets a new buffer in the PSYC text state struct.
*/
static inline
void psyc_setTextBuffer (psycTextState* state, psycString buffer)
{
@ -72,6 +121,9 @@ void psyc_setTextBuffer (psycTextState* state, psycString buffer)
state->written = 0;
}
/**
* Sets a new buffer in the PSYC text state struct.
*/
static inline
void psyc_setTextBuffer2 (psycTextState* state,
char *buffer, size_t length)
@ -82,15 +134,18 @@ void psyc_setTextBuffer2 (psycTextState* state,
/**
* Fills out text templates by asking a callback for content.
*
* Copies the contents of the template into the buffer while looking
* for braceOpen and braceClose strings and calling the callback for
* each enclosed string between these braces. Should the callback
* return -1, the original template text is copied as is.
* Copies the contents of the template into the buffer while looking for the
* opening and closing brace strings and calling the callback for each enclosed
* string between these braces. Should the callback return
* PSYC_TEXT_VALUE_NOT_FOUND, the original template text is copied as is.
*
* By default PSYC's "[" and "]" are used but you can provide any other
* brace strings such as "${" and "}" or "<!--" and "-->".
* Before calling this function psyc_initTextState or psyc_initTextState should
* be called to initialze the state struct. By default PSYC's "[" and "]" are
* used but you can provide any other brace strings such as "${" and "}" or
* "<!--" and "-->".
*
* See also http://about.psyc.eu/psyctext
*/
* @see http://about.psyc.eu/psyctext
**/
psycTextRC psyc_text (psycTextState *state, psycTextCB getValue);
/** @} */ // end of text group