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Unified Diff: icu46/source/test/intltest/textfile.cpp

Issue 5516007: Check in the pristine copy of ICU 4.6... (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/
Patch Set: Created 10 years ago
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Index: icu46/source/test/intltest/textfile.cpp
===================================================================
--- icu46/source/test/intltest/textfile.cpp (revision 0)
+++ icu46/source/test/intltest/textfile.cpp (revision 0)
@@ -0,0 +1,179 @@
+/*
+**********************************************************************
+* Copyright (c) 2004, International Business Machines
+* Corporation and others. All Rights Reserved.
+**********************************************************************
+* Author: Alan Liu
+* Created: March 19 2004
+* Since: ICU 3.0
+**********************************************************************
+*/
+#include "textfile.h"
+#include "cmemory.h"
+#include "cstring.h"
+#include "intltest.h"
+#include "util.h"
+
+// If the symbol CCP is defined, then the 'name' and 'encoding'
+// constructor parameters are copied. Otherwise they are aliased.
+// #define CCP
+
+TextFile::TextFile(const char* _name, const char* _encoding, UErrorCode& ec) :
+ file(0),
+ name(0), encoding(0),
+ buffer(0),
+ capacity(0),
+ lineNo(0)
+{
+ if (U_FAILURE(ec) || _name == 0 || _encoding == 0) {
+ if (U_SUCCESS(ec)) {
+ ec = U_ILLEGAL_ARGUMENT_ERROR;
+ }
+ return;
+ }
+
+#ifdef CCP
+ name = uprv_malloc(uprv_strlen(_name) + 1);
+ encoding = uprv_malloc(uprv_strlen(_encoding) + 1);
+ if (name == 0 || encoding == 0) {
+ ec = U_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
+ uprv_strcpy(name, _name);
+ uprv_strcpy(encoding, _encoding);
+#else
+ name = (char*) _name;
+ encoding = (char*) _encoding;
+#endif
+
+ const char* testDir = IntlTest::getSourceTestData(ec);
+ if (U_FAILURE(ec)) {
+ return;
+ }
+ if (!ensureCapacity((int32_t)(uprv_strlen(testDir) + uprv_strlen(name) + 1))) {
+ ec = U_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
+ uprv_strcpy(buffer, testDir);
+ uprv_strcat(buffer, name);
+
+ file = T_FileStream_open(buffer, "rb");
+ if (file == 0) {
+ ec = U_ILLEGAL_ARGUMENT_ERROR;
+ return;
+ }
+}
+
+TextFile::~TextFile() {
+ if (file != 0) T_FileStream_close(file);
+ if (buffer != 0) uprv_free(buffer);
+#ifdef CCP
+ uprv_free(name);
+ uprv_free(encoding);
+#endif
+}
+
+UBool TextFile::readLine(UnicodeString& line, UErrorCode& ec) {
+ if (T_FileStream_eof(file)) {
+ return FALSE;
+ }
+ // Note: 'buffer' may change after ensureCapacity() is called,
+ // so don't use
+ // p=buffer; *p++=c;
+ // but rather
+ // i=; buffer[i++]=c;
+ int32_t n = 0;
+ for (;;) {
+ int c = T_FileStream_getc(file); // sic: int, not int32_t
+ if (c < 0 || c == 0xD || c == 0xA) {
+ // consume 0xA following 0xD
+ if (c == 0xD) {
+ c = T_FileStream_getc(file);
+ if (c != 0xA && c >= 0) {
+ T_FileStream_ungetc(c, file);
+ }
+ }
+ break;
+ }
+ if (!setBuffer(n++, c, ec)) return FALSE;
+ }
+ if (!setBuffer(n++, 0, ec)) return FALSE;
+ UnicodeString str(buffer, encoding);
+ // Remove BOM in first line, if present
+ if (lineNo == 0 && str[0] == 0xFEFF) {
+ str.remove(0, 1);
+ }
+ ++lineNo;
+ line = str.unescape();
+ return TRUE;
+}
+
+UBool TextFile::readLineSkippingComments(UnicodeString& line, UErrorCode& ec,
+ UBool trim) {
+ for (;;) {
+ if (!readLine(line, ec)) return FALSE;
+ // Skip over white space
+ int32_t pos = 0;
+ ICU_Utility::skipWhitespace(line, pos, TRUE);
+ // Ignore blank lines and comment lines
+ if (pos == line.length() || line.charAt(pos) == 0x23/*'#'*/) {
+ continue;
+ }
+ // Process line
+ if (trim) line.remove(0, pos);
+ return TRUE;
+ }
+}
+
+/**
+ * Set buffer[index] to c, growing buffer if necessary. Return TRUE if
+ * successful.
+ */
+UBool TextFile::setBuffer(int32_t index, char c, UErrorCode& ec) {
+ if (capacity <= index) {
+ if (!ensureCapacity(index+1)) {
+ ec = U_MEMORY_ALLOCATION_ERROR;
+ return FALSE;
+ }
+ }
+ buffer[index] = c;
+ return TRUE;
+}
+
+/**
+ * Make sure that 'buffer' has at least 'mincapacity' bytes.
+ * Return TRUE upon success. Upon return, 'buffer' may change
+ * value. In any case, previous contents are preserved.
+ */
+UBool TextFile::ensureCapacity(int32_t mincapacity) {
+ if (capacity >= mincapacity) {
+ return TRUE;
+ }
+
+ // Grow by factor of 2 to prevent frequent allocation
+ // Note: 'capacity' may be 0
+ int32_t i;
+ for (i = capacity || 1024; i < mincapacity; ) {
+ i <<= 1;
+ if (i < 0) {
+ i = 0x7FFFFFFF;
+ break;
+ }
+ }
+ mincapacity = i;
+
+ // Simple realloc() no good; contents not preserved
+ // Note: 'buffer' may be 0
+ char* newbuffer = (char*) uprv_malloc(mincapacity);
+ if (newbuffer == 0) {
+ return FALSE;
+ }
+ if (buffer != 0) {
+ uprv_strncpy(newbuffer, buffer, capacity);
+ uprv_free(buffer);
+ }
+ buffer = newbuffer;
+ capacity = mincapacity;
+ return TRUE;
+}
+
Property changes on: icu46/source/test/intltest/textfile.cpp
___________________________________________________________________
Added: svn:eol-style
+ LF
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