Module: sip-router
Branch: master
Commit: 6ad59b21c54865e45144b84a3d0569553891da4c
URL:    
http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=6ad59b21c54865e45144b84a3d0569553891da4c

Author: Daniel-Constantin Mierla <[email protected]>
Committer: Daniel-Constantin Mierla <[email protected]>
Date:   Thu Dec 15 16:19:18 2011 +0100

pv: added transformations for trim, right trim and left trim

- remove whitespaces (' ', '\t', '\r', '\n') from start or end of a string value

---

 modules_k/pv/pv_trans.c |   45 +++++++++++++++++++++++++++++++++++++++++++++
 modules_k/pv/pv_trans.h |    2 +-
 2 files changed, 46 insertions(+), 1 deletions(-)

diff --git a/modules_k/pv/pv_trans.c b/modules_k/pv/pv_trans.c
index da5dbfd..139275b 100644
--- a/modules_k/pv/pv_trans.c
+++ b/modules_k/pv/pv_trans.c
@@ -592,6 +592,42 @@ int tr_eval_string(struct sip_msg *msg, tr_param_t *tp, 
int subtype,
                        val->rs.s = _tr_buffer;
                        break;
 
+               case TR_S_TRIM:
+                       if(!(val->flags&PV_VAL_STR))
+                               val->rs.s = int2str(val->ri, &val->rs.len);
+                       if(val->rs.len>TR_BUFFER_SIZE-2)
+                               return -1;
+                       memcpy(_tr_buffer, val->rs.s, val->rs.len);
+                       val->flags = PV_VAL_STR;
+                       val->rs.s = _tr_buffer;
+                       trim(&val->rs);
+                       val->rs.s[val->rs.len] = '\0';
+                       break;
+
+               case TR_S_RTRIM:
+                       if(!(val->flags&PV_VAL_STR))
+                               val->rs.s = int2str(val->ri, &val->rs.len);
+                       if(val->rs.len>TR_BUFFER_SIZE-2)
+                               return -1;
+                       memcpy(_tr_buffer, val->rs.s, val->rs.len);
+                       val->flags = PV_VAL_STR;
+                       val->rs.s = _tr_buffer;
+                       trim_trailing(&val->rs);
+                       val->rs.s[val->rs.len] = '\0';
+                       break;
+
+               case TR_S_LTRIM:
+                       if(!(val->flags&PV_VAL_STR))
+                               val->rs.s = int2str(val->ri, &val->rs.len);
+                       if(val->rs.len>TR_BUFFER_SIZE-2)
+                               return -1;
+                       memcpy(_tr_buffer, val->rs.s, val->rs.len);
+                       val->flags = PV_VAL_STR;
+                       val->rs.s = _tr_buffer;
+                       trim_leading(&val->rs);
+                       val->rs.s[val->rs.len] = '\0';
+                       break;
+
                default:
                        LM_ERR("unknown subtype %d\n",
                                        subtype);
@@ -1580,6 +1616,15 @@ char* tr_parse_string(str* in, trans_t *t)
                        goto error;
                }
                goto done;
+       } else if(name.len==4 && strncasecmp(name.s, "trim", 4)==0) {
+               t->subtype = TR_S_TRIM;
+               goto done;
+       } else if(name.len==5 && strncasecmp(name.s, "rtrim", 5)==0) {
+               t->subtype = TR_S_RTRIM;
+               goto done;
+       } else if(name.len==5 && strncasecmp(name.s, "ltrim", 5)==0) {
+               t->subtype = TR_S_LTRIM;
+               goto done;
        }
 
        LM_ERR("unknown transformation: %.*s/%.*s/%d!\n", in->len, in->s,
diff --git a/modules_k/pv/pv_trans.h b/modules_k/pv/pv_trans.h
index 0938ddc..24f4bc2 100644
--- a/modules_k/pv/pv_trans.h
+++ b/modules_k/pv/pv_trans.h
@@ -40,7 +40,7 @@ enum _tr_s_subtype {
        TR_S_ESCAPECOMMON, TR_S_UNESCAPECOMMON, TR_S_ESCAPEUSER, 
TR_S_UNESCAPEUSER,
        TR_S_ESCAPEPARAM, TR_S_UNESCAPEPARAM, TR_S_TOLOWER, TR_S_TOUPPER,
        TR_S_STRIP, TR_S_STRIPTAIL, TR_S_PREFIXES, TR_S_PREFIXES_QUOT, 
TR_S_REPLACE,
-       TR_S_TIMEFORMAT
+       TR_S_TIMEFORMAT, TR_S_TRIM, TR_S_RTRIM, TR_S_LTRIM
 };
 enum _tr_uri_subtype {
        TR_URI_NONE=0, TR_URI_USER, TR_URI_HOST, TR_URI_PASSWD, TR_URI_PORT,


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