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| author | Maria Matejka <mq@ucw.cz> | 2019-02-12 11:31:18 +0100 |
|---|---|---|
| committer | Maria Matejka <mq@ucw.cz> | 2019-02-20 22:30:54 +0100 |
| commit | 041608129ab15b5eab6fb607c45ddd2d748295b5 (patch) | |
| tree | 9d8423120a55088e9956c677a5b33d99a52ab12a /filter | |
| parent | 5289304519918f62d099463123bf6c69a0dd497e (diff) | |
| download | bird-041608129ab15b5eab6fb607c45ddd2d748295b5.tar.gz | |
Filter generator: workaround for M4 claiming all the put-around code be on one line
Diffstat (limited to 'filter')
| -rw-r--r-- | filter/decl.m4 | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/filter/decl.m4 b/filter/decl.m4 index 7ff22c2e..90ba4ff9 100644 --- a/filter/decl.m4 +++ b/filter/decl.m4 @@ -14,9 +14,11 @@ m4_divert(-1)m4_dnl # 3 constructors # # Per-inst Diversions: -# 11 content of struct f_inst_FI_... -# 12 constructor arguments -# 13 constructor body +# 101 content of struct f_inst_FI_... +# 102 constructor arguments +# 103 constructor body +# +# Put-around Diversions: 9xx # Flush the completed instruction m4_define(FID_END, `m4_divert(-1)') @@ -33,7 +35,7 @@ m4_define(FID_STRUCT_IN, `m4_divert(101)') m4_define(FID_NEW_ARGS, `m4_divert(102)') m4_define(FID_NEW_BODY, `m4_divert(103)') -m4_define(FID_ALL, `/* fidall */m4_ifdef([[FID_CURDIV]], [[m4_divert(FID_CURDIV)m4_undefine([[FID_CURDIV]])]])') +m4_define(FID_ALL, `m4_ifdef([[FID_CURDIV]], [[m4_divert(FID_CURDIV)m4_undefine([[FID_CURDIV]])]])') m4_define(FID_C, `m4_ifelse(TARGET, [[C]], FID_ALL, [[m4_define(FID_CURDIV, m4_divnum)m4_divert(-1)]])') m4_define(FID_H, `m4_ifelse(TARGET, [[H]], FID_ALL, [[m4_define(FID_CURDIV, m4_divnum)m4_divert(-1)]])') @@ -109,9 +111,15 @@ m4_define(COUNT, `FID_MEMBER(uint, count)') m4_define(TREE, `FID_MEMBER(const struct f_tree *, tree)') m4_define(STRING, `FID_MEMBER(const char *, s)') -m4_m4wrap(` -INST_FLUSH() -m4_divert(0) +m4_define(FID_WR_UNDIVERT_LIST,FID_WR_DPUT(900)) +m4_define(FID_WR_CUR_DIRECT,900) +m4_define(FID_WR_PUT, `m4_ifelse(1, m4_eval(m4_divnum > -1), [[m4_divert(-1) + m4_define([[FID_WR_CUR_DIRECT]], m4_eval(FID_WR_CUR_DIRECT + 1)) + m4_define([[FID_WR_UNDIVERT_LIST]], FID_WR_UNDIVERT_LIST[[]]/* wrput $1 */FID_WR_DPUT($1)/* wrputdir FID_WR_CUR_DIRECT */FID_WR_DPUT(FID_WR_CUR_DIRECT)) + m4_divert(FID_WR_CUR_DIRECT)]], [[m4_define([[FID_WR_UNDIVERT_LIST]], FID_WR_UNDIVERT_LIST[[]]/* wrdrop $1 */FID_WR_DROP($1))]])') + +m4_changequote([[,]]) +m4_divert(900) FID_C #include "nest/bird.h" #include "filter/filter.h" @@ -119,11 +127,11 @@ FID_C FID_H /* Filter instruction codes */ enum f_instruction_code { -m4_undivert(4) +FID_WR_PUT(4) }; /* Per-instruction structures */ -m4_undivert(1) +FID_WR_PUT(1) struct f_inst { const struct f_inst *next; /* Next instruction */ @@ -131,13 +139,16 @@ struct f_inst { int size; /* How many instructions are underneath */ int lineno; /* Line number */ union { - m4_undivert(2) + FID_WR_PUT(2) }; }; FID_ALL /* Instruction constructors */ -m4_undivert(3) -') +FID_WR_PUT(3) +m4_divert(-1) +m4_changequote(`,') + +m4_m4wrap(`INST_FLUSH()m4_define(FID_WR_DPUT, [[m4_undivert($1)]])m4_define(FID_WR_DROP, [[m4_divert(-1)m4_undivert($1)m4_divert(0)]])m4_divert(0)FID_WR_UNDIVERT_LIST[[]]m4_divert(-1)') m4_changequote([[,]]) |