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lib, doc: increase maximum cli tokens

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When matching user input against a CLI graph, we keep a stack of tokens
matched. Stack size was limited to 64, making the effective number of
tokens that could be entered on a line 64. This is too limiting in some
circumstances, so bump it to 256 (and document it).

Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
This commit is contained in:
Quentin Young 2017-09-13 10:39:13 -04:00
parent fea0584841
commit bb74e5acbc
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2 changed files with 4 additions and 1 deletions
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3
doc/cli.md
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@ -75,6 +75,9 @@ Some general notes:
configuration items should be defined in separate commands. Clarity is configuration items should be defined in separate commands. Clarity is
preferred over LOC (within reason). preferred over LOC (within reason).
* The maximum number of space-separated tokens that can be entered is presently
limited to 256. Please keep this limit in mind when implementing new CLI.
Variable Names Variable Names
-------------- --------------
The parser tries to fill the "varname" field on each token. This can happen The parser tries to fill the "varname" field on each token. This can happen

2
lib/command_match.c
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@ -28,7 +28,7 @@
DEFINE_MTYPE_STATIC(LIB, CMD_MATCHSTACK, "Command Match Stack") DEFINE_MTYPE_STATIC(LIB, CMD_MATCHSTACK, "Command Match Stack")
#define MAXDEPTH 64 #define MAXDEPTH 256
#ifdef TRACE_MATCHER #ifdef TRACE_MATCHER
#define TM 1 #define TM 1