#include "system.h"
#include <rpmbuild.h>
#include <rpmlib.h>
#include "debug.h"
Go to the source code of this file.
Data Structures | |
struct | _parseState |
Parser state. More... | |
struct | _value |
Encapsulation of a "value". More... | |
Parser tokens | |
#define | TOK_EOF 1 |
#define | TOK_INTEGER 2 |
#define | TOK_STRING 3 |
#define | TOK_IDENTIFIER 4 |
#define | TOK_ADD 5 |
#define | TOK_MINUS 6 |
#define | TOK_MULTIPLY 7 |
#define | TOK_DIVIDE 8 |
#define | TOK_OPEN_P 9 |
#define | TOK_CLOSE_P 10 |
#define | TOK_EQ 11 |
#define | TOK_NEQ 12 |
#define | TOK_LT 13 |
#define | TOK_LE 14 |
#define | TOK_GT 15 |
#define | TOK_GE 16 |
#define | TOK_NOT 17 |
#define | TOK_LOGICAL_AND 18 |
#define | TOK_LOGICAL_OR 19 |
Defines | |
#define | DEBUG(x) |
#define | valueIsInteger(v) ((v)->type == VALUE_TYPE_INTEGER) |
#define | valueIsString(v) ((v)->type == VALUE_TYPE_STRING) |
#define | valueSameType(v1, v2) ((v1)->type == (v2)->type) |
#define | EXPRBUFSIZ BUFSIZ |
Typedefs | |
typedef _value * | Value |
Encapsulation of a "value". | |
typedef _parseState * | ParseState |
Parser state. | |
Functions | |
Value | valueMakeInteger (int i) |
Value | valueMakeString (const char *s) |
void | valueFree (Value v) |
int | rdToken (ParseState state) |
Value | doLogical (ParseState state) |
Value | doPrimary (ParseState state) |
Value | doMultiplyDivide (ParseState state) |
Value | doAddSubtract (ParseState state) |
Value | doRelational (ParseState state) |
int | parseExpressionBoolean (Spec spec, const char *expr) |
char * | parseExpressionString (Spec spec, const char *expr) |
This module implements a basic expression parser with support for integer and string datatypes. For ease of programming, we use the top-down "recursive descent" method of parsing. While a table-driven bottom-up parser might be faster, it does not really matter for the expressions we will be parsing.
Copyright (C) 1998 Tom Dyas <tdyas@eden.rutgers.edu> This work is provided under the GPL or LGPL at your choice.
Definition in file expression.c.
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Definition at line 27 of file expression.c. Referenced by doAddSubtract(), doLogical(), doMultiplyDivide(), doPrimary(), doRelational(), parseExpressionBoolean(), parseExpressionString(), and rdToken(). |
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Definition at line 137 of file expression.c. Referenced by rdToken(). |
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Definition at line 120 of file expression.c. Referenced by doAddSubtract(), and rdToken(). |
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Definition at line 125 of file expression.c. Referenced by doPrimary(), and rdToken(). |
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Definition at line 123 of file expression.c. Referenced by doMultiplyDivide(), and rdToken(). |
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Definition at line 116 of file expression.c. Referenced by parseExpressionBoolean(), parseExpressionString(), and rdToken(). |
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Definition at line 126 of file expression.c. Referenced by doRelational(), and rdToken(). |
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Definition at line 131 of file expression.c. Referenced by doRelational(), and rdToken(). |
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Definition at line 130 of file expression.c. Referenced by doRelational(), and rdToken(). |
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Definition at line 119 of file expression.c. Referenced by doPrimary(), and rdToken(). |
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Definition at line 117 of file expression.c. Referenced by doPrimary(), and rdToken(). |
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Definition at line 129 of file expression.c. Referenced by doRelational(), and rdToken(). |
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Definition at line 133 of file expression.c. Referenced by doLogical(), and rdToken(). |
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Definition at line 134 of file expression.c. Referenced by doLogical(), and rdToken(). |
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Definition at line 128 of file expression.c. Referenced by doRelational(), and rdToken(). |
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Definition at line 121 of file expression.c. Referenced by doAddSubtract(), doPrimary(), and rdToken(). |
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Definition at line 122 of file expression.c. Referenced by doMultiplyDivide(), and rdToken(). |
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Definition at line 127 of file expression.c. Referenced by doRelational(), and rdToken(). |
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Definition at line 132 of file expression.c. Referenced by doPrimary(), and rdToken(). |
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Definition at line 124 of file expression.c. Referenced by doPrimary(), and rdToken(). |
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Definition at line 118 of file expression.c. Referenced by doPrimary(), and rdToken(). |
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Definition at line 95 of file expression.c. Referenced by doAddSubtract(), doLogical(), doMultiplyDivide(), doPrimary(), and doRelational(). |
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Definition at line 96 of file expression.c. |
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Definition at line 97 of file expression.c. Referenced by doAddSubtract(), doLogical(), doMultiplyDivide(), and doRelational(). |
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Parser state.
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Encapsulation of a "value".
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Definition at line 467 of file expression.c. References _, _value::data, DEBUG, doMultiplyDivide(), _parseState::nextToken, rdToken(), RPMERR_BADSPEC, rpmError, stpcpy(), TOK_ADD, TOK_MINUS, valueFree(), valueIsInteger, valueMakeInteger(), valueMakeString(), valueSameType, and xmalloc(). Referenced by doRelational(). |
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Definition at line 627 of file expression.c. References _, _value::data, DEBUG, doRelational(), _parseState::nextToken, rdToken(), RPMERR_BADSPEC, rpmError, TOK_LOGICAL_AND, TOK_LOGICAL_OR, valueFree(), valueIsInteger, valueMakeInteger(), and valueSameType. Referenced by doPrimary(), parseExpressionBoolean(), and parseExpressionString(). |
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Definition at line 412 of file expression.c. References _, _value::data, DEBUG, doPrimary(), _parseState::nextToken, rdToken(), RPMERR_BADSPEC, rpmError, TOK_DIVIDE, TOK_MULTIPLY, valueFree(), valueIsInteger, valueMakeInteger(), and valueSameType. Referenced by doAddSubtract(). |
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Definition at line 331 of file expression.c. References _, _value::data, DEBUG, doLogical(), _parseState::nextToken, rdToken(), RPMERR_BADSPEC, rpmError, rpmExpand(), TOK_CLOSE_P, TOK_IDENTIFIER, TOK_INTEGER, TOK_MINUS, TOK_NOT, TOK_OPEN_P, TOK_STRING, _parseState::tokenValue, valueIsInteger, valueMakeInteger(), and valueMakeString(). Referenced by doMultiplyDivide(). |
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Definition at line 531 of file expression.c. References _, _value::data, DEBUG, doAddSubtract(), _parseState::nextToken, rdToken(), RPMERR_BADSPEC, rpmError, TOK_EQ, TOK_GE, TOK_GT, TOK_LE, TOK_LT, TOK_NEQ, valueFree(), valueIsInteger, valueMakeInteger(), and valueSameType. Referenced by doLogical(). |
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Definition at line 185 of file expression.c. References _, DEBUG, EXPRBUFSIZ, _parseState::nextToken, _parseState::p, RPMERR_BADSPEC, rpmError, rpmExpand(), TOK_ADD, TOK_CLOSE_P, TOK_DIVIDE, TOK_EOF, TOK_EQ, TOK_GE, TOK_GT, TOK_IDENTIFIER, TOK_INTEGER, TOK_LE, TOK_LOGICAL_AND, TOK_LOGICAL_OR, TOK_LT, TOK_MINUS, TOK_MULTIPLY, TOK_NEQ, TOK_NOT, TOK_OPEN_P, TOK_STRING, _parseState::tokenValue, valueMakeInteger(), valueMakeString(), xisalnum(), xisalpha(), xisdigit(), xisspace(), and xstrdup(). Referenced by doAddSubtract(), doLogical(), doMultiplyDivide(), doPrimary(), doRelational(), parseExpressionBoolean(), and parseExpressionString(). |
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Definition at line 69 of file expression.c. References _free(), _value::data, and _value::type. Referenced by doAddSubtract(), doLogical(), doMultiplyDivide(), doRelational(), parseExpressionBoolean(), and parseExpressionString(). |
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Definition at line 43 of file expression.c. References _value::data, _value::type, and xmalloc(). Referenced by doAddSubtract(), doLogical(), doMultiplyDivide(), doPrimary(), doRelational(), and rdToken(). |
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Definition at line 56 of file expression.c. References _value::data, _value::type, and xmalloc(). Referenced by doAddSubtract(), doPrimary(), and rdToken(). |