--- /dev/null
+/*
+*******************************************************************************
+* Copyright (C) 2011-2012, International Business Machines
+* Corporation and others. All Rights Reserved.
+*******************************************************************************
+* file name: ppucd.h
+* encoding: US-ASCII
+* tab size: 8 (not used)
+* indentation:4
+*
+* created on: 2011dec11
+* created by: Markus W. Scherer
+*/
+
+#ifndef __PPUCD_H__
+#define __PPUCD_H__
+
+#include "unicode/utypes.h"
+#include "unicode/uniset.h"
+#include "unicode/unistr.h"
+
+#include <stdio.h>
+
+/** Additions to the uchar.h enum UProperty. */
+enum {
+ /** Name_Alias */
+ PPUCD_NAME_ALIAS=UCHAR_STRING_LIMIT,
+ PPUCD_CONDITIONAL_CASE_MAPPINGS,
+ PPUCD_TURKIC_CASE_FOLDING
+};
+
+U_NAMESPACE_BEGIN
+
+class U_TOOLUTIL_API PropertyNames {
+public:
+ virtual ~PropertyNames();
+ virtual int32_t getPropertyEnum(const char *name) const;
+ virtual int32_t getPropertyValueEnum(int32_t property, const char *name) const;
+};
+
+struct U_TOOLUTIL_API UniProps {
+ UniProps();
+ ~UniProps();
+
+ int32_t getIntProp(int32_t prop) const { return intProps[prop-UCHAR_INT_START]; }
+
+ UChar32 start, end;
+ UBool binProps[UCHAR_BINARY_LIMIT];
+ int32_t intProps[UCHAR_INT_LIMIT-UCHAR_INT_START];
+ UVersionInfo age;
+ UChar32 bmg;
+ UChar32 scf, slc, stc, suc;
+ int32_t digitValue;
+ const char *numericValue;
+ const char *name;
+ const char *nameAlias;
+ UnicodeString cf, lc, tc, uc;
+ UnicodeSet scx;
+};
+
+class U_TOOLUTIL_API PreparsedUCD {
+public:
+ enum LineType {
+ /** No line, end of file. */
+ NO_LINE,
+ /** Empty line. (Might contain a comment.) */
+ EMPTY_LINE,
+
+ /** ucd;6.1.0 */
+ UNICODE_VERSION_LINE,
+
+ /** property;Binary;Alpha;Alphabetic */
+ PROPERTY_LINE,
+ /** binary;N;No;F;False */
+ BINARY_LINE,
+ /** value;gc;Zs;Space_Separator */
+ VALUE_LINE,
+
+ /** defaults;0000..10FFFF;age=NA;bc=L;... */
+ DEFAULTS_LINE,
+ /** block;0000..007F;age=1.1;blk=ASCII;ea=Na;... */
+ BLOCK_LINE,
+ /** cp;0030;AHex;bc=EN;gc=Nd;na=DIGIT ZERO;... */
+ CP_LINE,
+
+ /** algnamesrange;4E00..9FCC;han;CJK UNIFIED IDEOGRAPH- */
+ ALG_NAMES_RANGE_LINE,
+
+ LINE_TYPE_COUNT
+ };
+
+ /**
+ * Constructor.
+ * Prepare this object for a new, empty package.
+ */
+ PreparsedUCD(const char *filename, UErrorCode &errorCode);
+
+ /** Destructor. */
+ ~PreparsedUCD();
+
+ /** Sets (aliases) a non-standard PropertyNames implementation. Caller retains ownership. */
+ void setPropertyNames(const PropertyNames *pn) { pnames=pn; }
+
+ /**
+ * Reads a line from the preparsed UCD file.
+ * Splits the line by replacing each ';' with a NUL.
+ */
+ LineType readLine(UErrorCode &errorCode);
+
+ /** Returns the number of the line read by readLine(). */
+ int32_t getLineNumber() const { return lineNumber; }
+
+ /** Returns the line's next field, or NULL. */
+ const char *nextField();
+
+ /** Returns the Unicode version when or after the UNICODE_VERSION_LINE has been read. */
+ const UVersionInfo &getUnicodeVersion() const { return ucdVersion; }
+
+ /** Returns TRUE if the current line has property values. */
+ UBool lineHasPropertyValues() const { return DEFAULTS_LINE<=lineType && lineType<=CP_LINE; }
+
+ /**
+ * Parses properties from the current line.
+ * Clears newValues and sets UProperty codes for property values mentioned
+ * on the current line (as opposed to being inherited).
+ * Returns a pointer to the filled-in UniProps, or NULL if something went wrong.
+ * The returned UniProps are usable until the next line of the same type is read.
+ */
+ const UniProps *getProps(UnicodeSet &newValues, UErrorCode &errorCode);
+
+ /**
+ * Returns the code point range for the current algnamesrange line.
+ * Calls & parses nextField().
+ * Further nextField() calls will yield the range's type & prefix string.
+ * Returns U_SUCCESS(errorCode).
+ */
+ UBool getRangeForAlgNames(UChar32 &start, UChar32 &end, UErrorCode &errorCode);
+
+private:
+ UBool isLineBufferAvailable(int32_t i) {
+ return defaultLineIndex!=i && blockLineIndex!=i;
+ }
+
+ /** Resets the field iterator and returns the line's first field (the line type field). */
+ const char *firstField();
+
+ UBool parseProperty(UniProps &props, const char *field, UnicodeSet &newValues,
+ UErrorCode &errorCode);
+ UChar32 parseCodePoint(const char *s, UErrorCode &errorCode);
+ UBool parseCodePointRange(const char *s, UChar32 &start, UChar32 &end, UErrorCode &errorCode);
+ void parseString(const char *s, UnicodeString &uni, UErrorCode &errorCode);
+ void parseScriptExtensions(const char *s, UnicodeSet &scx, UErrorCode &errorCode);
+
+ static const int32_t kNumLineBuffers=3;
+
+ PropertyNames *icuPnames; // owned
+ const PropertyNames *pnames; // aliased
+ FILE *file;
+ int32_t defaultLineIndex, blockLineIndex, lineIndex;
+ int32_t lineNumber;
+ LineType lineType;
+ char *fieldLimit;
+ char *lineLimit;
+
+ UVersionInfo ucdVersion;
+ UniProps defaultProps, blockProps, cpProps;
+ // Multiple lines so that default and block properties can maintain pointers
+ // into their line buffers.
+ char lines[kNumLineBuffers][4096];
+};
+
+U_NAMESPACE_END
+
+#endif // __PPUCD_H__
projects / apple / icu.git / blobdiff