Title:            String handling additions for gmisc client
Responsible:      Darrell Schiebel (drs@nrao.edu)
Originator:       Wes Young (wyoung@nrao.edu)
Exploders:        aips2-lib aips2-ui aips2-workers
Time Table:
    Date of issue:     1996 April 23
    Comments due:      1996 April 29
    Revised proposal:  1996   May  1
    Final comments     1996   May  8
    Decision date:     1996   May 10 => accepted without comment

To add the following string functions to the gmisc client:

string := sprintf(formating_string, arg...);
record := sscanf(input_string, pattern_string, var_names="");
          Note: var_names is a vector of strings which let you specify
                the record field names.  Default is rec[1], rec[2], etc.

int    := contains(string, looking_for, regex=T, starting_at=1)
int    := find(string, looking_for, regex=T, starting_at=1)
string := replace(string, looking_for, replacement, regex=T,
                  starting_at=1, global=F);

int    := compare(string1, string2, case='ignore')
string := toupper(string);
string := tolower(string);

Note: starting_at defaults to 1 for glish consistency.

Expected impact

Should help with string handling in glish. Probably a day or two worth of
work implementing these functions in gmisc.

Proposed Documentation changes

Need to update the gmisc documentation.