diff options
Diffstat (limited to 'gcc/cobol/gcobol.1')
-rw-r--r-- | gcc/cobol/gcobol.1 | 192 |
1 files changed, 115 insertions, 77 deletions
diff --git a/gcc/cobol/gcobol.1 b/gcc/cobol/gcobol.1 index 6db5400..ebb833c 100644 --- a/gcc/cobol/gcobol.1 +++ b/gcc/cobol/gcobol.1 @@ -587,6 +587,21 @@ statement, regardless of compile-time constants. .. . .Ss Implemented Exception Conditions +By default, per ISO, no EC is enabled. Implemented ECs may be enabled +on the command line or via the +.Sy TURN +directive. Any attempt to enable an EC that is not implemented is +treated as an error. +.Pp +An enabled EC not handled by a +.Sy DECLARATIVE +is written to the system log and to standard error. (The authors +intend to make that an option.) A fatal EC not handled with +.Sy RESUME +ends with a call to +.Xr abort 3 +and process termination. +.Pp Not all Exception Conditions are implemented. Any attempt to enable an EC that that is not implemented produces a warning message. The following are implemented: @@ -913,11 +928,90 @@ or has no effect; the two are interchangeable. .. . -.Ss Compiler-Directing Facility (CDF) +.Sh COMPILER-DIRECTING FACILITY The CDF should be used with caution because no comprehensive test -suite has been identified. +suite has been identified. . -.Ss Conditional Compilation +.Ss CDF Text Manipulation +.Bl -tag -width >>DEFINE +.It Sy COPY Ar copybook Li Oo OF|BY Ar library Oc Oo Sy REPLACING ... Oc +If +.Ar copybook +is a literal, it treated a literal filename, which either does or does not exist. If +.Ar copybook +is a \*[lang] word, +.Nm +looks first for an environment variable named +.Va copybook +and, if found, uses the contents of that variable as the name of the +copybook file. If that file does not exist, it continues looking for +a file named one of: +.sp +.Bl -bullet -compact -offset 5n +.It +.Pa copybook +(literally) +.It +.Pa copybook.cpy +.It +.Pa copybook.CPY +.It +.Pa copybook.cbl +.It +.Pa copybook.CBL +.It +.Pa copybook.cob +.It +.Pa copybook.COB +.El +.sp +in that order. It looks first in the same directory as the source +code file, and then in any +.Ar copybook-path +named with the +.Fl I +option. +. +.\" FIXME: need escape mechanism for directories with ':' in the name. +.Ar copybook-path +may (like the shell's +.Ev PATH +variable) be a colon-separated list. +The +.Fl I +option may occur multiple times on the command line. Each successive +.Ar copybook-path +is concatenated to previous ones. +Relative paths (having no leading +.Ql / Ns +\&) +are searched relative to the compiler's current working directory. +.Pp +For example, +.D1 \& +.D1 Fl I Li /usr/local/include:include +.D1 \& +searches first the directory where the \*[lang] program is found, next in +.Pa /usr/local/include , +and finally in an +.Pa include +subdirectory of the directory from which +.Nm +was invoked. +.Pp +For the +.Sy REPLACING +phrase, both the modern pseudo-text and the \*[lang]/85 forms are +recognized. (The older forms are used in the NIST CCVS/85 test suite.) +.It Sy REPLACE ... +.Nm +supports the full ISO +.Sy REPLACE +syntax. +.El +. +.Ss CDF Directives +.\"Bl -tag -width >>PROPAGATE .Bl -tag -width >>DEFINE .It >> Ns Sy DEFINE Ar name Sy AS Bro Ar expression Li | Sy PARAMETER Brc Op Sy OVERRIDE Define @@ -959,10 +1053,6 @@ is supported. Boolean literals are not supported. . .It >> Ns Sy EVALUATE Not implemented. -.El -. -.Ss Other CDF Directives -.Bl -tag -width >>PROPAGATE .It >> Ns Sy CALL-CONVENTION Ar convention .Ar convention may be one of: @@ -1036,6 +1126,24 @@ Not implemented. Not implemented. .It >> Ns Sy PROPAGATE Not implemented. +.It >> Ns Sy PUSH Ar directive +.It >> Ns Sy POP Ar directive +With +.Sy PUSH , +push CDF state onto a stack. +With +.Sy POP , +return to the prior pushed state. +.Ar directive +may be one of +.Bl -tag -compact +.It Sy CALL-CONVENTION +.It Sy COBOL-WORDS +.It Sy DEFINE +.It Sy SOURCE FORMAT +.It Sy TURN +.El +. .It >> Ns Sy TURN Oo .Ar ec Oo Ar file Li ... Oc ... .Oc Sy CHECKING Bro Oo Sy ON Oc Oo Oo Sy WITH Oc Sy LOCATION Oc | Sy OFF Brc @@ -1087,76 +1195,6 @@ the directive must appear before To test a feature-set variable, use .Dl >>IF Ar feature Li DEFINED . -.Ss Copybooks -.Nm -supports the CDF -.Sy COPY -statement, with or without its -.Sy REPLACING -component. For any statement -.sp -.D1 COPY Ar copybook -.sp -.Nm -looks first for an environment variable named -.Va copybook -and, if found, uses the contents of that variable as the name of the -copybook file. If that file does not exist, it continues looking for -a file named one of: -.sp -.Bl -bullet -compact -offset 5n -.It -.Pa copybook -(literally) -.It -.Pa copybook.cpy -.It -.Pa copybook.CPY -.It -.Pa copybook.cbl -.It -.Pa copybook.CBL -.It -.Pa copybook.cob -.It -.Pa copybook.COB -.El -.sp -in that order. It looks first in the same directory as the source -code file, and then in any -.Ar copybook-path -named with the -.Fl I -option. -. -.\" FIXME: need escape mechanism for directories with ':' in the name. -.Ar copybook-path -may (like the shell's -.Ev PATH -variable) be a colon-separated list. -. -The -.Fl I -option may occur multiple times on the command line. Each successive -.Ar copybook-path -is concatenated to previous ones. -Relative paths (having no leading -.Ql / Ns -\&) -are searched relative to the compiler's current working directory. -.Pp -For example, -.D1 \& -.D1 Fl I Li /usr/local/include:include -.D1 \& -searches first the directory where the \*[lang] program is found, next in -.Pa /usr/local/include , -and finally in an -.Pa include -subdirectory of the directory from which -.Nm -was invoked. -. .Ss Intrinsic functions .Nm implements all intrinsic functions defined by \*[isostd], plus a few |