255 lines
8.4 KiB
SourcePawn
255 lines
8.4 KiB
SourcePawn
// vim: set ts=4 sw=4 tw=99 noet:
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//
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// AMX Mod X, based on AMX Mod by Aleksander Naszko ("OLO").
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// Copyright (C) The AMX Mod X Development Team.
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//
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// This software is licensed under the GNU General Public License, version 3 or higher.
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// Additional exceptions apply. For full license details, see LICENSE.txt or visit:
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// https://alliedmods.net/amxmodx-license
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//
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// SMC Parser Functions
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//
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#if defined _textparse_smc_included
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#endinput
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#endif
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#define _textparse_smc_included
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/**
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* Everything below describes the SMC Parse, or "SourceMod Configuration" format.
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* This parser is entirely event based. You must hook events to receive data.
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* The file format itself is nearly identical to Valve's KeyValues format (also known as VDF).
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*/
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/**
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* The SMC file format is defined as:
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* WHITESPACE: 0x20, \n, \t, \r
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* IDENTIFIER: Any ASCII character EXCLUDING ", {, }, ;, //, / *, or WHITESPACE.
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* STRING : Any set of symbols enclosed in quotes.
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*
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* Note: if a STRING does not have quotes, it is parsed as an IDENTIFIER.
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*
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* Basic syntax is comprised of SECTIONBLOCKs.
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* A SECTIONBLOCK defined as:
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*
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* SECTIONNAME
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* {
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* OPTION
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* }
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*
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* OPTION can be repeated any number of times inside a SECTIONBLOCK.
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* A new line will terminate an OPTION, but there can be more than one OPTION per line.
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* OPTION is defined any of:
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* "KEY" "VALUE"
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* SECTIONBLOCK
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*
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* SECTIONNAME, KEY, VALUE, and SINGLEKEY are strings
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* SECTIONNAME cannot have trailing characters if quoted, but the quotes can be optionally removed.
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* If SECTIONNAME is not enclosed in quotes, the entire sectionname string is used (minus surrounding whitespace).
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* If KEY is not enclosed in quotes, the key is terminated at first whitespace.
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* If VALUE is not properly enclosed in quotes, the entire value string is used (minus surrounding whitespace).
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* The VALUE may have inner quotes, but the key string may not.
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*
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* For an example, see scripting/testsuite/textparse_test.cfg
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*
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* WHITESPACE should be ignored.
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* Comments are text occurring inside the following tokens, and should be stripped
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* unless they are inside literal strings:
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* ;<TEXT>
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* //<TEXT>
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* / *<TEXT> * /
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*/
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/**
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* Parser invalid code.
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*/
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enum SMCParser
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{
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Invalid_SMCParser = 0
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};
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/**
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* Parse result directive.
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*/
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enum SMCResult
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{
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SMCParse_Continue, /* Continue parsing */
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SMCParse_Halt, /* Stop parsing here */
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SMCParse_HaltFail /* Stop parsing and return failure */
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};
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/**
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* Parse error codes.
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*/
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enum SMCError
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{
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SMCError_Okay = 0, /* No error */
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SMCError_StreamOpen, /* Stream failed to open */
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SMCError_StreamError, /* The stream died... somehow */
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SMCError_Custom, /* A custom handler threw an error */
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SMCError_InvalidSection1, /* A section was declared without quotes, and had extra tokens */
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SMCError_InvalidSection2, /* A section was declared without any header */
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SMCError_InvalidSection3, /* A section ending was declared with too many unknown tokens */
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SMCError_InvalidSection4, /* A section ending has no matching beginning */
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SMCError_InvalidSection5, /* A section beginning has no matching ending */
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SMCError_InvalidTokens, /* There were too many unidentifiable strings on one line */
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SMCError_TokenOverflow, /* The token buffer overflowed */
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SMCError_InvalidProperty1, /* A property was declared outside of any section */
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};
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/**
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* Creates a new SMC parser.
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* This is used to set parse hooks.
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*
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* @return A new handle to an SMC Parse structure.
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*/
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native SMCParser:SMC_CreateParser();
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/**
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* Disposes of an SMC parser.
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*
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* @param handle Handle to an SMC Parse structure.
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*
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* @return True if disposed, false otherwise.
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*/
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native SMC_DestroyParser(&SMCParser:handle);
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/**
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* Parses a config file.
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*
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* @param handle A handle to an SMC Parse structure.
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* @param file A string containing the file path.
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* @param line An optional by reference cell to store the last line number read.
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* @param col An optional by reference cell to store the last column number read.
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*
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* @return An SMCParseError result.
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* @error Invalid or corrupt handle.
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*/
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native SMCError:SMC_ParseFile(SMCParser:handle, const file[], &line = 0, &col = 0);
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/**
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* Sets the SMC_ParseStart function of a parse handle.
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*
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* @note Below is the prototype of callback:
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* -
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* Called when parsing is started.
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*
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* @param handle Handle to an SMC Parse structure.
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*
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* @noreturn
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*
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* public OnParseStart(SMCParser:handle)
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* -
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* @param handle Handle to an SMC Parse structure.
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* @param func A ParseStart callback.
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*
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* @noreturn
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* @error Invalid or corrupt handle.
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*/
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native SMC_SetParseStart(SMCParser:handle, const func[]);
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/**
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* Sets the SMC_ParseEnd function of a parse handle.
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*
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* @note Below is the prototype of callback:
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* -
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* Called when parsing is halted.
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*
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* @param handle Handle to an SMC Parse structure.
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* @param halted True if abnormally halted, false otherwise.
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* @param failed True if parsing failed, false otherwise.
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*
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* @noreturn
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*
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* public OnParseEnd(SMCParser:handle, bool:halted, bool:failed)
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* -
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* @param handle Handle to an SMC Parse structure.
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* @param func A ParseEnd callback.
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*
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* @noreturn
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* @error Invalid or corrupt handle.
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*/
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native SMC_SetParseEnd(SMCParser:handle, const func[]);
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/**
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* Sets the three main reader functions.
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*
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* @note Enclosing quotes are always stripped.
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* @note Below is the prototype of callbacks:
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* -
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* NewSection:
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* Called when the parser finds a new section or sub-section.
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*
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* @param handle Handle to an SMC Parse structure.
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* @param name String containing section name.
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*
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* @return An SMCResult action to take.
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*
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* public SMCResult:OnNewSection(SMCParser:handle, const name[])
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*
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* KeyValue:
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* Called when the parser finds a new key/value pair.
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*
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* @param handle Handle to an SMC Parse structure.
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* @param key String containing key name.
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* @param value String containing value name.
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*
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* @return An SMCResult action to take.
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*
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* public SMCResult:OnKeyValue(SMCParser:handle, const key[], const value[])
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*
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* EndSection:
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* Called when the parser finds the end of the current section.
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*
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* @param handle Handle to an SMC Parse structure.
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*
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* @return An SMCResult action to take.
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*
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* public SMCResult:OnEndSection(SMCParser:handle)
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* -
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* @param handle Handle to an SMC Parse structure.
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* @param kv A KeyValue callback.
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* @param ns An optional NewSection callback.
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* @param es An optional EndSection callback.
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*
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* @noreturn
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*/
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native SMC_SetReaders(SMCParser:smc, const kvFunc[], const nsFunc[] = "", const esFunc[] = "");
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/**
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* Sets a raw line reader on an text parser handle.
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*
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* @note Below is the prototype of callbacks:
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* -
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* Called whenever a raw line is read.
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*
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* @param handle Handle to an SMC Parse structure.
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* @param line A string containing the raw line from the file.
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* @param lineno The line number it occurs on.
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*
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* @return An SMCResult action to take.
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*
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* public SMCResult:SMC_RawLine(SMCParser:handle, const line[], lineno)
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* -
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* @param handle Handle to an SMC Parse structure.
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* @param func A RawLine callback.
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*
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* @noreturn
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*/
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native SMC_SetRawLine(SMCParser:handle, const func[]);
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/**
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* Gets an error string for an SMCError code.
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*
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* @note SMCError_Okay returns false.
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* @note SMCError_Custom (which is thrown on SMCParse_HaltFail) returns false.
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*
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* @param error The SMCParseError code.
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* @param buffer A string buffer for the error (contents undefined on failure).
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* @param buf_max The maximum size of the buffer.
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*
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* @return True on success, false otherwise.
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*/
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native bool:SMC_GetErrorString(SMCError:error, buffer[], buf_max);
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