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Annotation of 43BSD/contrib/icon/man/cat2/snapshot.2, revision 1.1.1.1

1.1       root        1: 
                      2: 
                      3: 
                      4: SNAPSHOT(2)           Icon Program Library            SNAPSHOT(2)
                      5: 
                      6: 
                      7: 
                      8: NNNNAAAAMMMMEEEE
                      9:      snapshot - snapshot of state of string scanning
                     10: 
                     11: DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
                     12:      The procedure ssssnnnnaaaappppsssshhhhooootttt(((()))) writes a snapshot of the state of
                     13:      string scanning, showing the value of &&&&ssssuuuubbbbjjjjeeeecccctttt and &&&&ppppoooossss. For
                     14:      example,
                     15: 
                     16:           "((a+b)-delta)/(c*d))" ? (tab(bal('+-/*')) & snapshot())
                     17: 
                     18:      produces
                     19: 
                     20:           -------------------------------------
                     21:           |                                   |
                     22:           | &subject = "((a+b)-delta)/(c*d))" |
                     23:           |                          |        |
                     24:           -------------------------------------
                     25: 
                     26:      Note that the bar showing the &&&&ppppoooossss is positioned under the
                     27:      &&&&ppppoooossssth character (actual positions are between characters).
                     28:      If &&&&ppppoooossss is at the end of &&&&ssssuuuubbbbjjjjeeeecccctttt, the bar is positioned
                     29:      under the quotation mark delimiting the subject. For exam-
                     30:      ple,
                     31: 
                     32:           "abcdefgh" ? (tab(0) & snapshot())
                     33: 
                     34:      produces
                     35: 
                     36:           -------------------------
                     37:           |                       |
                     38:           | &subject = "abcdefgh" |
                     39:           |                     | |
                     40:           -------------------------
                     41: 
                     42:      Escape sequences are handled properly. For example,
                     43: 
                     44:           "abc\tdef\nghi" ? (tab(upto('\n')) & snapshot())
                     45: 
                     46:      produces
                     47: 
                     48:           ------------------------------
                     49:           |                            |
                     50:           | &subject = "abc\tdef\nghi" |
                     51:           |                     |      |
                     52:           ------------------------------
                     53: 
                     54: 
                     55: AAAAUUUUTTTTHHHHOOOORRRR
                     56:      Ralph E. Griswold
                     57: 
                     58: 
                     59: 
                     60: 
                     61: 
                     62: 
                     63: Version 5.9    The University of Arizona - 4/9/83               1
                     64: 
                     65: 
                     66: 

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