GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
Unix |
Unix v7 |
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struct(1) |
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struct − structure Fortran programs
struct [ option ] ... file
Struct translates the Fortran program specified by file (standard input default) into a Ratfor program. Wherever possible, Ratfor control constructs replace the original Fortran. Statement numbers appear only where still necessary. Cosmetic changes are made, including changing Hollerith strings into quoted strings and relational operators into symbols (.e.g. ’.GT.’ into ’>’). The output is appropriately indented.
The following options may occur in any order.
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−s |
Input is accepted in standard format, i.e. comments are specified by a c, C, or * in column 1, and continuation lines are specified by a nonzero, nonblank character in column 6. Normally, a statement whose first nonblank character is not alphanumeric is treated as a continuation. | ||
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−i |
Do not turn computed goto statements into switches. (Ratfor does not turn switches back into computed goto statements.) | ||
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−a |
Turn sequences of else ifs into a non-Ratfor switch of the form |
switch {
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case pred1: code | ||
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case pred2: code | ||
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case pred3: code | ||
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default: code | ||
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} |
The case predicates are tested in order; the code appropriate to only one case is executed. This generalized form of switch statement does not occur in Ratfor.
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−b |
Generate goto’s instead of multilevel break statements. | ||
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−n |
Generate goto’s instead of multilevel next statements. | ||
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−en |
If n is 0 (default), place code within a loop only if it can lead to an iteration of the loop. If n is nonzero, admit code segments with fewer than n statements to a loop if otherwise the loop would have exits to several places including the segment, and the segment can be reached only from the loop. |
/tmp/struct*
/usr/lib/struct/*
f77(1)
Struct knows
Fortran 66 syntax, but not full Fortran 77 (alternate
returns, IF...THEN...ELSE, etc.)
If an input Fortran program contains identifiers which are
reserved words in Ratfor, the structured version of the
program will not be a valid Ratfor program.
Extended range DO’s generate cryptic errors.
Columns 73-80 are not special even when −s is
in effect.
Will not generate Ratfor FOR statements.
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struct(1) | |