LitValue.cxx File Reference

#include <assert.h>
#include <stdint.h>
#include <stdlib.h>
#include <dirent.h>
#include <string.h>
#include <fstream>
#include <iostream>
#include <string>
#include <sstream>
#include <unicode/uchar.h>
#include <libsherpa/utf8.hxx>
#include "LitValue.hxx"

Go to the source code of this file.

Defines
#define	DEBUG_DECODE   false
#define	ESCAPED_LITERAL(s, cp)
	Map from all of the named, escaped literals to the corresponding code points.
#define	SINGLE_LITERAL(s, cp)
Functions
static bool	needsBackslashEscape (uint32_t c)
static bool	asciiPrintableCharacter (uint32_t c)

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Define Documentation

#define DEBUG_DECODE   false

Definition at line 54 of file LitValue.cxx.

Referenced by LitValue::DecodeStringCharacter().

#define ESCAPED_LITERAL	(	s,
		cp		)

Value:

{ "\\{" s "}" , cp },         \
  { "'\\" s "'", cp }

Map from all of the named, escaped literals to the corresponding code points.

There were getting to be too many of these to keep in sync, so I wanted one place to maintain them.

This table is only used to validate lexically well-formed escapes. The format for in-string, sexpr-char, and block-char escapes are mutually non-overlapping, so we just stick them all in a single table.

The multi-character literals appear in three forms:

S-expression: # Block character escape: '' Embedded in a string: "...\{formfeed}..."

The single character versions do not have short-form S-expression character variants, because this would interfere with the normal S-expression character syntax.

Definition at line 176 of file LitValue.cxx.

#define SINGLE_LITERAL	(	s,
		cp		)

Value:

{ "\\" s , cp },             \
  { "'\\" s "'", cp }

Definition at line 179 of file LitValue.cxx.

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Function Documentation

static bool asciiPrintableCharacter

(

uint32_t

c

)

[static]

Definition at line 401 of file LitValue.cxx.

static bool needsBackslashEscape

(

uint32_t

c

)

[static]

Definition at line 395 of file LitValue.cxx.

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