Bumping this thread as Im in need of this feature

I'm currently working on an HTTP implementation. Within that implementation I need to verify header values are formatted correctly; A header's value is stored in a bvar and can be over the ~8k string-length limit imposed.

I need to check if the header's value only contains values in the ASCII range(1-126). Currently this requires a (slow) loop for what amounts to a OR check of values:
alias isAscii {
  if (!$bvar($1, 0)) {
    return $false

  var %x = 1, %len = $bvar($1, 0)
  while (%x < %len) {
    inc %x
    if ($bvar($1, %x) == 0 || $v1 > 126) {
      return $false

  return $true

To amend Wim's suggestion what I'd like to see is:
$bfind(&binvar, start-position, [end-position], [name], pattern).regex
  Returns the starting position of the first found match

    The bvar to search

    The starting position of which the search should begin
    Must be an integer value

  end-position - Optional
    The end position of which the search should stop
    Must be an integer value

  name - Optional
    The regex-name to use when referencing the match list via $regml()
    Must not be a numerical value

    The regex pattern

    Indicates a regex pattern has been specified

$breplace(&binvar, substring, newstring...)
$breplace(&binvar, substring, newstring...).cs
  Performs a text-based in-place substitution  on a binary variable
  Returns the number of substitutions made

  if .cs is specified, the search will be case-sensitive

$breplace([name], &binvar, pattern, subtext).regex
  Performs a regex-based in-place substitution on a binary variable
  Returns the number of substitutions made

  You can assign a name to a $breplace().regex call which you can use later in $regml() to retrieve the list of matches.

$regml([name], n, [&binvar])
$regmlex([name], m, n, [&binvar])
    Similar to the current implementation except the result is output to the specified &binvar
    If outputting to a &binvar, the length of the bvar is returned

The reason I have choosen a new identifier over altering $replace/cs and $regsubex is that of the end-result differing. With current implementations, the replace creates a new string and once substitutions have finished, the new string is returned. The functionality I'd like to see is that of substitutions being performed in-place

Last edited by FroggieDaFrog; 21/01/20 02:30 PM.

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