shell_command-make-input-parameter-optional.patch

   1 ---
   2
   3  doc/help.etx   |    5 +++--
   4  source/macro.c |    7 ++++---
   5  2 files changed, 7 insertions(+), 5 deletions(-)
   6
   7 diff --quilt old/source/macro.c new/source/macro.c
   8 --- old/source/macro.c
   9 +++ new/source/macro.c
  10 @@ -2710,17 +2710,18 @@ static int getenvMS(WindowInfo *window,
  11  }
  12
  13  static int shellCmdMS(WindowInfo *window, DataValue *argList, int nArgs,
  14         DataValue *result, char **errMsg)
  15  {
  16 -    char stringStorage[2][TYPE_INT_STR_SIZE(int)], *cmdString, *inputString;
  17 +    char stringStorage[2][TYPE_INT_STR_SIZE(int)], *cmdString, *inputString = "";
  18
  19 -    if (nArgs != 2)
  20 +    if (nArgs != 1 && nArgs != 2)
  21         return wrongNArgsErr(errMsg);
  22      if (!readStringArg(argList[0], &cmdString, stringStorage[0], errMsg))
  23         return False;
  24 -    if (!readStringArg(argList[1], &inputString, stringStorage[1], errMsg))
  25 +    if (nArgs == 2 &&
  26 +            !readStringArg(argList[1], &inputString, stringStorage[1], errMsg))
  27         return False;
  28
  29      /* Shell command execution requires that the macro be suspended, so
  30         this subroutine can't be run if macro execution can't be interrupted */
  31      if (MacroRunWindow()->macroCmdData == NULL) {
  32 diff --quilt old/doc/help.etx new/doc/help.etx
  33 --- old/doc/help.etx
  34 +++ new/doc/help.etx
  35 @@ -2691,14 +2691,15 @@ Macro Subroutines
  36  ..  off.
  37
  38  **set_cursor_pos( position )**
  39    Set the cursor position for the current window.
  40
  41 -**shell_command( command, input_string )**
  42 +**shell_command( command[, input_string] )**
  43    Executes a shell command, feeding it input from input_string. On completion,
  44    output from the command is returned as the function value, and the command's
  45 -  exit status is returned in the global variable $shell_cmd_status.
  46 +  exit status is returned in the global variable $shell_cmd_status. If the
  47 +  input_string is ommited or is "" the shell command get no input.
  48
  49  **split(string, separation_string [, search_type])**
  50    Splits a string using the separator specified. Optionally the search_type
  51    argument can specify how the separation_string is interpreted. The default
  52    is "literal". The returned value is an array with keys beginning at 0.