diff options
Diffstat (limited to 'man.3')
| -rw-r--r-- | man.3 | 106 |
1 files changed, 53 insertions, 53 deletions
@@ -20,38 +20,37 @@ .Sh NAME .Nm man , .Nm man_alloc , -.Nm man_parseln , .Nm man_endparse , -.Nm man_node , -.Nm man_meta , .Nm man_free , +.Nm man_meta , +.Nm man_node , +.Nm man_parseln , .Nm man_reset .Nd man macro compiler library .Sh SYNOPSIS +.In mandoc.h .In man.h .Vt extern const char * const * man_macronames; .Ft "struct man *" -.Fn man_alloc "void *data" "int pflags" "const struct man_cb *cb" -.Ft void -.Fn man_reset "struct man *man" +.Fn man_alloc "void *data" "int pflags" "mandocmsg msgs" +.Ft int +.Fn man_endparse "struct man *man" .Ft void .Fn man_free "struct man *man" -.Ft int -.Fn man_parseln "struct man *man" "int line" "char *buf" -.Ft "const struct man_node *" -.Fn man_node "const struct man *man" .Ft "const struct man_meta *" .Fn man_meta "const struct man *man" +.Ft "const struct man_node *" +.Fn man_node "const struct man *man" .Ft int -.Fn man_endparse "struct man *man" +.Fn man_parseln "struct man *man" "int line" "char *buf" +.Ft void +.Fn man_reset "struct man *man" .Sh DESCRIPTION The .Nm library parses lines of .Xr man 7 -input (and -.Em only -man) into an abstract syntax tree (AST). +input into an abstract syntax tree (AST). .Pp In general, applications initiate a parsing sequence with .Fn man_alloc , @@ -68,7 +67,8 @@ then free all allocated memory with The .Fn man_reset function may be used in order to reset the parser for another input -sequence. See the +sequence. +See the .Sx EXAMPLES section for a full example. .Pp @@ -79,18 +79,6 @@ the library also accepts the following macros: .Pp .Bl -tag -width Ds -compact -.It am -.It ami -.It de -.It dei -.It ig -Instructional macros in the original roff language. Blocks begun by -these macros end with -.Sq .. -and may begin anywhere, although they may not break the next-line -scoping rules specified in -.Xr man 7 . -These blocks are discarded. .It PD Has no effect. Handled as a current-scope line macro. .It Sp @@ -98,8 +86,6 @@ A synonym for .Sq sp 0.5v .Pq part of the standard preamble for Perl documentation . Handled as a line macro. -.It UC -Has no effect. Handled as a current-scope line macro. .It Vb A synonym for .Sq nf @@ -143,7 +129,8 @@ This section further defines the .Sx Functions and .Sx Variables -available to programmers. Following that, the +available to programmers. +Following that, the .Sx Abstract Syntax Tree section documents the output tree. .Ss Types @@ -157,11 +144,12 @@ may use the following types: An opaque type defined in .Pa man.c . Its values are only used privately within the library. -.It Vt struct man_cb -A set of message callbacks defined in -.Pa man.h . +.It Vt mandocmsg +A function callback type defined in +.Pa mandoc.h . .It Vt struct man_node -A parsed node. Defined in +A parsed node. +Defined in .Pa man.h . See .Sx Abstract Syntax Tree @@ -171,7 +159,8 @@ for details. Function descriptions follow: .Bl -ohang .It Fn man_alloc -Allocates a parsing structure. The +Allocates a parsing structure. +The .Fa data pointer is passed to callbacks in .Fa cb , @@ -180,35 +169,42 @@ The .Fa pflags arguments are defined in .Pa man.h . -Returns NULL on failure. If non-NULL, the pointer must be freed with +Returns NULL on failure. +If non-NULL, the pointer must be freed with .Fn man_free . .It Fn man_reset -Reset the parser for another parse routine. After its use, +Reset the parser for another parse routine. +After its use, .Fn man_parseln behaves as if invoked for the first time. .It Fn man_free -Free all resources of a parser. The pointer is no longer valid after -invocation. +Free all resources of a parser. +The pointer is no longer valid after invocation. .It Fn man_parseln -Parse a nil-terminated line of input. This line should not contain the -trailing newline. Returns 0 on failure, 1 on success. The input buffer +Parse a nil-terminated line of input. +This line should not contain the trailing newline. +Returns 0 on failure, 1 on success. +The input buffer .Fa buf is modified by this function. .It Fn man_endparse -Signals that the parse is complete. Note that if +Signals that the parse is complete. +Note that if .Fn man_endparse is called subsequent to .Fn man_node , -the resulting tree is incomplete. Returns 0 on failure, 1 on success. +the resulting tree is incomplete. +Returns 0 on failure, 1 on success. .It Fn man_node -Returns the first node of the parse. Note that if +Returns the first node of the parse. +Note that if .Fn man_parseln or .Fn man_endparse return 0, the tree will be incomplete. .It Fn man_meta -Returns the document's parsed meta-data. If this information has not -yet been supplied or +Returns the document's parsed meta-data. +If this information has not yet been supplied or .Fn man_parseln or .Fn man_endparse @@ -224,7 +220,8 @@ An array of string-ified token names. The .Nm functions produce an abstract syntax tree (AST) describing input in a -regular form. It may be reviewed at any time with +regular form. +It may be reviewed at any time with .Fn man_nodes ; however, if called before .Fn man_endparse , @@ -234,17 +231,16 @@ or .Fn man_parseln fail, it may be incomplete. .Pp -This AST is governed by the ontological -rules dictated in +This AST is governed by the ontological rules dictated in .Xr man 7 and derives its terminology accordingly. .Pp The AST is composed of .Vt struct man_node -nodes with element, root and text types as declared -by the +nodes with element, root and text types as declared by the .Va type -field. Each node also provides its parse point (the +field. +Each node also provides its parse point (the .Va line , .Va sec , and @@ -315,11 +311,15 @@ if (NULL == (node = man_node(man))) parsed(man, node); man_free(man); .Ed +.Pp +Please see +.Pa main.c +in the source archive for a rigorous reference. .Sh SEE ALSO .Xr mandoc 1 , .Xr man 7 .Sh AUTHORS The .Nm -utility was written by +library was written by .An Kristaps Dzonsons Aq kristaps@bsd.lv . |