General: lstring::gettok: If a token starts with single or double

quote, the returned token will contain the entire quoted string, with
the quotes.
WRspice:  forms like v(xx<0>) are now handled in ipc from Xic and from
the Vectors panel without a syntax error when not double quoted.
Xic:  Avoid spurious message and possibly worse from the check function
attempting to connect by location a connect-by-name terminal.

wrspice/include/cshell.h

@@ -156,6 +156,7 @@ enum CPflag {
     CP_NOTTYIO,                 // Prevent changes to terminal.
     CP_WAITING,                 // True when waiting for input.
     CP_RAWMODE,                 // stdin is in raw mode.
+    CP_NOBRKTOK,                // Lexer shouldn't take <>&; as token sep. 
     CP_NUMFLAGS
 };
 

wrspice/src/cp/front.cc

@@ -579,7 +579,7 @@ CshPar::FreeBlock(const char *name)
 
 // Prevent redirection for listed commands.
 namespace {
-    const char *const noredirect[] = { "stop", 0 } ;  // Only one??
+    const char *const noredirect[] = { "stop", "plot", "iplot", 0 } ;  // More?
 }
 
 // If there is an argument, give this to cshpar to use instead of stdin. In

wrspice/src/cp/ipcomm.cc

@@ -284,6 +284,7 @@ CshPar::MessageHandler(int fc)
 
     s = buf;
     cp_flags[CP_MESSAGE] = true;
+
     // some "secret" interface functions
     if (lstring::eq(buf, "inprogress")) {
         // Return whether or not a simulation is in progress.
@@ -519,6 +520,12 @@ CshPar::MessageHandler(int fc)
         // Run as WRspice built-in command.
         bool intr = cp_flags[CP_INTERACTIVE];
         cp_flags[CP_INTERACTIVE] = false;
+
+        if (lstring::match("plot", buf) || lstring::match("iplot", buf)) {
+            // Avoid syntax error on unquoted form like v(xx<0>).
+            cp_flags[CP_NOBRKTOK] = true;
+        }
+
 #ifdef WIN32
         extern jmp_buf msw_jbf[4];
         extern int msw_jbf_sp;
@@ -541,6 +548,7 @@ CshPar::MessageHandler(int fc)
 #endif
         cp_flags[CP_CWAIT] = true;  // have to reset this
         cp_flags[CP_INTERACTIVE] = intr;
+        cp_flags[CP_NOBRKTOK] = false;
         Sp.Periodic();
         write_msg("ok");
     }

wrspice/src/cp/lexical.cc

@@ -584,10 +584,12 @@ namespace {
 
 
     // Return true if c is one of the special characters included, which
-    // break words
+    // break words.
     //
     inline bool breakword(char c)
     {
+        if (CP.GetFlag(CP_NOBRKTOK))
+            return (false);
         return (c == '<' || c == '>' || c == ';' || c == '&');
     }
 }
@@ -599,6 +601,7 @@ namespace {
 
 #define FILENO(fp) ((fp) ? fileno(fp) : -1)
 
+
 wordlist *
 CshPar::Lexer(const char *string)
 {

wrspice/src/plot/doplot.cc

@@ -395,8 +395,13 @@ SPgraphics::Plot(wordlist *wl, sGraph *fromgraph, const char *hcopy,
         // The plot arguments are converted back to a wordlist, since
         // GetPtree(wordlist*,...) handles quoted tokens properly, i.e.,
         // quoted tokens are evaluated as separate expressions.
-        //
+
+        CP.SetFlag(CP_NOBRKTOK, true);
+        // NOBRKTOK allows forms like v(aa<0>) to lex without a syntax
+        // error when not double-quoted.
         wordlist *plotcmd = CP.Lexer(ls_plot.string());
+        CP.SetFlag(CP_NOBRKTOK, true);
+
         pnlist *pl0 = Sp.GetPtree(plotcmd, false);
         wordlist::destroy(plotcmd);
         if (pl0 == 0) {

xic/src/sced/sced_check.cc

@@ -1133,6 +1133,8 @@ cSced::prptyCheckInst(CDs *sdesc, CDc *cdesc, char **str)
     //
     CDp_cnode *pcn = (CDp_cnode*)cdesc->prpty(P_NODE);
     for ( ; pcn; pcn = pcn->next()) {
+        if (pcn->has_flag(TE_BYNAME))
+            continue;
         for (unsigned int ix = 0; ; ix++) {
             int x, y;
             if (!pcn->get_pos(ix, &x, &y))
@@ -1151,6 +1153,8 @@ cSced::prptyCheckInst(CDs *sdesc, CDc *cdesc, char **str)
     }
     CDp_bcnode *pb = (CDp_bcnode*)cdesc->prpty(P_BNODE);
     for ( ; pb; pb = pb->next()) {
+        if (pb->has_flag(TE_BYNAME))
+            continue;
         for (unsigned int ix = 0; ; ix++) {
             int x, y;
             if (!pb->get_pos(ix, &x, &y))

xt_base/include/miscutil/lstring.h

@@ -471,8 +471,22 @@ namespace lstring {
         if (!**s)
             return (0);
         T *st = *s;
-        while (is_not_sepchar(**s, sepchars))
+        if (**s == '"' || **s == '\'') {
+            // Keep quotes and keep content verbatim.
+            char q = **s;
             (*s)++;
+            while (**s) {
+                if (**s == q)
+                    break;
+                (*s)++;
+            }
+            if (**s)
+                (*s)++;
+        }
+        else {
+            while (is_not_sepchar(**s, sepchars))
+                (*s)++;
+        }
         char *cbuf = new char[*s - st + 1];
         char *c = cbuf;
         while (st < *s)