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print_wrapped_text.cpp

/***************************************************************
 *
 * Copyright (C) 1990-2007, Condor Team, Computer Sciences Department,
 * University of Wisconsin-Madison, WI.
 * 
 * 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 "condor_common.h"
#include "print_wrapped_text.h"

void print_wrapped_text(
    const char *text, 
      FILE *output, 
      int chars_per_line)
{
      char *text_copy, *t, *token;
      int char_count;

      text_copy = strdup(text);
      t = text_copy;

      char_count = 0;
      token = strtok(text_copy, " \t");
      while (token != NULL) {
            int token_length;
            token_length = strlen(token);
            if (token_length < (chars_per_line - char_count)) {
                  fprintf(output, "%s", token);
                  char_count += token_length;
            }
            else {
                  // We should do a better job here: we might have
                  // some text that is longer than chars_per_line long.
                  fprintf(output, "\n%s", token);
                  char_count = token_length;
            }
            if (char_count < chars_per_line) {
                  fprintf(output, " ");
                  char_count++;
            } else {
                  fprintf(output, "\n");
                  char_count = 0;
            }                 
            token = strtok(NULL, " \t");
      }
      fprintf(output, "\n");

      free(t);
      return;
}

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