Graphviz: lib/gvpr/parse.c File Reference

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#include <ast/ast.h>
#include <ast/error.h>
#include <gvpr/parse.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <util/agxbuf.h>
#include <util/alloc.h>
#include <util/gv_ctype.h>
#include <util/unreachable.h>

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Macros
#define	BSIZE 8

Functions
static char *	caseStr (case_t cs)
	convert case_t to string

static int	eol (FILE *str)
	eat characters until eol

static int	readc (FILE str, agxbuf ostr)

static void	unreadc (FILE *str, int c)
	push character back onto stream; if newline, reduce lineno

static int	skipWS (FILE *str)

static void	parseID (FILE str, int c, char buf, size_t bsize)
	Put initial alpha in buffer; add additional alphas, up to buffer size.

static case_t	parseKind (FILE *str)

static int	endString (FILE ins, agxbuf outs, char ec)

static int	endBracket (FILE ins, agxbuf outs, char bc, char ec)

static char *	parseBracket (FILE str, agxbuf buf, int bc, int ec)

static char *	parseAction (FILE str, agxbuf buf)

static char *	parseGuard (FILE str, agxbuf buf)

static case_t	parseCase (FILE str, char guard, int gline, char *action, int aline)

static void	addBlock (parse_blocks_t list, char stmt, int line, case_infos_t nodelist, case_infos_t edgelist)
	create new block and append to list; return new item as tail

static void	addCase (case_infos_t list, char guard, int gline, char *action, int line)
	create new case_info and append to list

static void	bindAction (case_t cs, char action, int aline, char ap, int lp)

parse_prog *	parseProg (char *input, int isFile)
	parses input into gpr sections

static void	freeBlocks (parse_blocks_t *ip)

void	freeParseProg (parse_prog *prog)

Variables
static int	lineno = 1

static int	col0 = 1

static int	startLine = 1

static int	kwLine = 1

static char *	case_str []

Macro Definition Documentation

◆ BSIZE

#define BSIZE 8

Definition at line 161 of file parse.c.

Function Documentation

◆ addBlock()

static void addBlock	(	parse_blocks_t *	list,
		char *	stmt,
		int	line,
		case_infos_t	nodelist,
		case_infos_t	edgelist
	)

static

Definition at line 338 of file parse.c.

Referenced by parseProg().

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◆ addCase()

static void addCase	(	case_infos_t *	list,
		char *	guard,
		int	gline,
		char *	action,
		int	line
	)

static

Definition at line 351 of file parse.c.

References error, ERROR_WARNING, guard, and kwLine.

Referenced by parseProg().

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◆ bindAction()

static void bindAction	(	case_t	cs,
		char *	action,
		int	aline,
		char **	ap,
		int *	lp
	)

static

Definition at line 368 of file parse.c.

References caseStr(), error, ERROR_ERROR, ERROR_WARNING, and kwLine.

Referenced by parseProg().

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◆ caseStr()

static char * caseStr ( case_t cs )

static

Definition at line 38 of file parse.c.

References case_str.

Referenced by bindAction().

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◆ endBracket()

static int endBracket	(	FILE *	ins,
		agxbuf *	outs,
		char	bc,
		char	ec
	)

static

Definition at line 231 of file parse.c.

References agxbputc(), endBracket(), endString(), ins(), and readc().

Referenced by endBracket(), and parseBracket().

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◆ endString()

static int endString	(	FILE *	ins,
		agxbuf *	outs,
		char	ec
	)

static

Definition at line 204 of file parse.c.

References agxbputc(), error, ERROR_ERROR, ins(), and lineno.

Referenced by endBracket().

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◆ eol()

static int eol ( FILE * str )

static

Definition at line 41 of file parse.c.

References col0, lineno, and str.

Referenced by readc().

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◆ freeBlocks()

static void freeBlocks ( parse_blocks_t * ip )

static

Definition at line 481 of file parse.c.

References parse_block::begg_stmt, parse_block::edge_stmts, free(), and parse_block::node_stmts.

Referenced by freeParseProg().

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◆ freeParseProg()

void freeParseProg ( parse_prog * prog )

Definition at line 491 of file parse.c.

References parse_prog::begin_stmt, parse_prog::blocks, parse_prog::end_stmt, parse_prog::endg_stmt, free(), and freeBlocks().

Referenced by gvpr(), and parseProg().

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◆ parseAction()

static char * parseAction	(	FILE *	str,
		agxbuf *	buf
	)

static

Definition at line 279 of file parse.c.

References parseBracket(), and str.

Referenced by parseCase().

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◆ parseBracket()

static char * parseBracket	(	FILE *	str,
		agxbuf *	buf,
		int	bc,
		int	ec
	)

static

Definition at line 258 of file parse.c.

References agxbdisown(), endBracket(), error, ERROR_ERROR, getErrorErrors(), lineno, skipWS(), startLine, str, and unreadc().

Referenced by parseAction(), and parseGuard().

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◆ parseCase()

static case_t parseCase	(	FILE *	str,
		char **	guard,
		int *	gline,
		char **	action,
		int *	aline
	)

static

Definition at line 298 of file parse.c.

References agxbfree(), Begin, BeginG, End, EndG, Eof, Error, getErrorErrors(), guard, parseAction(), parseGuard(), parseKind(), startLine, str, and UNREACHABLE.

Referenced by parseProg().

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◆ parseGuard()

static char * parseGuard	(	FILE *	str,
		agxbuf *	buf
	)

static

Definition at line 283 of file parse.c.

References parseBracket(), and str.

Referenced by parseCase().

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◆ parseID()

static void parseID	(	FILE *	str,
		int	c,
		char *	buf,
		size_t	bsize
	)

static

Definition at line 140 of file parse.c.

References gv_isalpha(), readc(), str, and unreadc().

Referenced by parseKind().

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◆ parseKind()

static case_t parseKind ( FILE * str )

static

Definition at line 166 of file parse.c.

References Begin, BeginG, BSIZE, End, EndG, Eof, error, Error, ERROR_ERROR, gv_isalpha(), kwLine, lineno, parseID(), skipWS(), and str.

Referenced by parseCase().

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◆ parseProg()

parse_prog * parseProg	(	char *	input,
		int	isFile
	)

Definition at line 381 of file parse.c.

References addBlock(), addCase(), Begin, parse_prog::begin_stmt, BeginG, bindAction(), parse_prog::blocks, col0, End, parse_prog::end_stmt, EndG, parse_prog::endg_stmt, Eof, error, Error, ERROR_ERROR, free(), freeParseProg(), getErrorErrors(), guard, kwLine, parse_prog::l_begin, parse_prog::l_end, parse_prog::l_endg, lineno, NULL, parseCase(), parse_prog::source, startLine, str, and UNREACHABLE.

Referenced by gvpr_core().

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◆ readc()

static int readc	(	FILE *	str,
		agxbuf *	ostr
	)

static

Definition at line 58 of file parse.c.

References agxbputc(), col0, eol(), lineno, and str.

Referenced by endBracket(), parseID(), and skipWS().

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◆ skipWS()

static int skipWS ( FILE * str )

static

Definition at line 128 of file parse.c.

References gv_isspace(), readc(), and str.

Referenced by parseBracket(), and parseKind().

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◆ unreadc()

static void unreadc	(	FILE *	str,
		int	c
	)

static

Definition at line 122 of file parse.c.

References lineno, and str.

Referenced by parseBracket(), and parseID().

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Variable Documentation

◆ case_str

char* case_str[]

static

Initial value:

= {
    "BEGIN", "END", "BEG_G", "END_G", "N", "E", "EOF", "ERROR",
}

Definition at line 33 of file parse.c.

Referenced by caseStr().

◆ col0

int col0 = 1

static

Definition at line 29 of file parse.c.

Referenced by eol(), parseProg(), and readc().

◆ kwLine

int kwLine = 1

static

Definition at line 31 of file parse.c.

Referenced by addCase(), bindAction(), parseKind(), and parseProg().

◆ lineno

int lineno = 1

static

Definition at line 28 of file parse.c.

Referenced by endString(), eol(), parseBracket(), parseKind(), parseProg(), ppDirective(), ppDirective(), readc(), and unreadc().

◆ startLine

int startLine = 1

static

Definition at line 30 of file parse.c.

Referenced by parseBracket(), parseCase(), and parseProg().

Macros

Functions

Variables

Macro Definition Documentation

◆ BSIZE

Function Documentation

◆ addBlock()

◆ addCase()

◆ bindAction()

◆ caseStr()

◆ endBracket()

◆ endString()

◆ eol()

◆ freeBlocks()

◆ freeParseProg()

◆ parseAction()

◆ parseBracket()

◆ parseCase()

◆ parseGuard()

◆ parseID()

◆ parseKind()

◆ parseProg()

◆ readc()

◆ skipWS()

◆ unreadc()

Variable Documentation

◆ case_str

◆ col0

◆ kwLine

◆ lineno

◆ startLine