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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
*/
#include <config.h>
#include <LongBow/runtime.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <unistd.h>
#include <string.h>
#include <ctype.h>
#include <parc/algol/parc_DisplayIndented.h>
static char *_spaces = " ";
static size_t _indentationFactor = 2;
static size_t
_indent(int indentation)
{
size_t result = 0;
if (indentation > 0) {
result = write(1, _spaces, indentation * _indentationFactor);
assertTrue(result == (indentation * _indentationFactor),
"Write(2) failed to write %zd bytes.", indentation * _indentationFactor);
}
return result;
}
static void
_parcDisplayIndented_Print(int indentation, char *string)
{
char *start = string;
char *end = strchr(start, '\n');
while (start != NULL) {
_indent(indentation);
if (end != NULL) {
ssize_t nwritten = write(1, start, end - start + 1);
assertTrue(nwritten >= 0, "Error calling write");
start = end + 1;
} else {
ssize_t nwritten = write(1, start, strlen(start));
assertTrue(nwritten >= 0, "Error calling write");
break;
}
end = strchr(start, '\n');
}
}
void
parcDisplayIndented_PrintLine(int indentation, const char *format, ...)
{
va_list ap;
va_start(ap, format);
char *cString;
int length = vasprintf(&cString, format, ap);
assertTrue(length >= 0, "Error in vasprintf");
va_end(ap);
_parcDisplayIndented_Print(indentation, cString);
ssize_t nwritten = write(1, "\n", 1);
assertTrue(nwritten >= 0, "Error calling write");
free(cString);
}
void
parcDisplayIndented_PrintMemory(int indentation, size_t length, const char memory[length])
{
int bytesPerLine = 16;
char accumulator[bytesPerLine + 1];
memset(accumulator, ' ', bytesPerLine);
accumulator[bytesPerLine] = 0;
char *cString;
for (size_t offset = 0; offset < length; /**/) {
int nwritten = asprintf(&cString, "%p=[", &memory[offset]);
assertTrue(nwritten >= 0, "Error calling asprintf");
_parcDisplayIndented_Print(indentation, cString);
free(cString);
size_t bytesInLine = (length - offset) < bytesPerLine ? (length - offset) : bytesPerLine;
for (size_t i = 0; i < bytesInLine; i++) {
char c = memory[offset + i];
printf("0x%02x, ", c & 0xFF);
accumulator[i] = isprint(c) ? c : '.';
}
offset += bytesInLine;
}
printf(" %s]\n", accumulator);
}
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