[reactos] 04/05: [CMD] Code formatting in SubstituteVar().

[Hermès Bélusca-Maïto]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=5cf0517be1ad609838039…

commit 5cf0517be1ad60983803900cd791bccc91bb1482
Author:     Hermès Bélusca-Maïto <hermes.belusca-maito(a)reactos.org>
AuthorDate: Sat Sep 19 18:48:51 2020 +0200
Commit:     Hermès Bélusca-Maïto <hermes.belusca-maito(a)reactos.org>
CommitDate: Sat Sep 19 19:44:55 2020 +0200

    [CMD] Code formatting in SubstituteVar().
---
 base/shell/cmd/cmd.c | 225 +++++++++++++++++++++++++--------------------------
 1 file changed, 111 insertions(+), 114 deletions(-)

diff --git a/base/shell/cmd/cmd.c b/base/shell/cmd/cmd.c
index 774bc4782bc..ba4e90dd05e 100644
--- a/base/shell/cmd/cmd.c
+++ b/base/shell/cmd/cmd.c
@@ -1363,137 +1363,127 @@ do { \
     if (!*Src || *Src == _T('\r') || *Src == _T('\n'))
         goto bad_subst;
 
+    if (bc && Delim == _T('%'))
     {
-        if (bc && Delim == _T('%'))
+        UINT NameLen;
+        Var = GetBatchVar(Src, &NameLen);
+        if (!Var && bParseError)
         {
-            UINT NameLen;
-            Var = GetBatchVar(Src, &NameLen);
-            if (!Var && bParseError)
-            {
-                /* Return the partially-parsed command to be
-                 * echoed for error diagnostics purposes. */
-                APPEND1(Delim);
-                APPEND(Src, _tcslen(Src) + 1);
-                return FALSE;
-            }
-            if (Var != NULL)
-            {
-                VarLength = _tcslen(Var);
-                APPEND(Var, VarLength);
-                Src += NameLen;
-                goto success;
-            }
+            /* Return the partially-parsed command to be
+             * echoed for error diagnostics purposes. */
+            APPEND1(Delim);
+            APPEND(Src, _tcslen(Src) + 1);
+            return FALSE;
         }
-
-        /* Find the end of the variable name. A colon (:) will usually
-         * end the name and begin the optional modifier, but not if it
-         * is immediately followed by the delimiter (%VAR:%). */
-        SubstStart = Src;
-        while (*Src && *Src != Delim && !(*Src == _T(':')
&& Src[1] != Delim))
+        if (Var != NULL)
         {
-            ++Src;
+            VarLength = _tcslen(Var);
+            APPEND(Var, VarLength);
+            Src += NameLen;
+            goto success;
         }
-        /* If we are either at the end of the string, or the delimiter
-         * has been repeated more than once, fail the substitution. */
-        if (!*Src || Src == SubstStart)
-            goto bad_subst;
+    }
 
-        EndChr = *Src;
-        *(PTSTR)Src = _T('\0'); // FIXME: HACK!
-        Var = GetEnvVarOrSpecial(SubstStart);
-        *(PTSTR)Src++ = EndChr;
-        if (Var == NULL)
-        {
-            /* In a batch context, %NONEXISTENT% "expands" to an
-             * empty string, otherwise fail the substitution. */
-            if (bc)
-                goto success;
-            goto bad_subst;
-        }
-        VarLength = _tcslen(Var);
+    /* Find the end of the variable name. A colon (:) will usually
+     * end the name and begin the optional modifier, but not if it
+     * is immediately followed by the delimiter (%VAR:%). */
+    SubstStart = Src;
+    while (*Src && *Src != Delim && !(*Src == _T(':') &&
Src[1] != Delim))
+    {
+        ++Src;
+    }
+    /* If we are either at the end of the string, or the delimiter
+     * has been repeated more than once, fail the substitution. */
+    if (!*Src || Src == SubstStart)
+        goto bad_subst;
+
+    EndChr = *Src;
+    *(PTSTR)Src = _T('\0'); // FIXME: HACK!
+    Var = GetEnvVarOrSpecial(SubstStart);
+    *(PTSTR)Src++ = EndChr;
+    if (Var == NULL)
+    {
+        /* In a batch context, %NONEXISTENT% "expands" to an
+         * empty string, otherwise fail the substitution. */
+        if (bc)
+            goto success;
+        goto bad_subst;
+    }
+    VarLength = _tcslen(Var);
 
-        if (EndChr == Delim)
+    if (EndChr == Delim)
+    {
+        /* %VAR% - use as-is */
+        APPEND(Var, VarLength);
+    }
+    else if (*Src == _T('~'))
+    {
+        /* %VAR:~[start][,length]% - substring
+         * Negative values are offsets from the end.
+         */
+        size_t Start = _tcstol(Src + 1, (PTSTR*)&Src, 0);
+        size_t End = VarLength;
+        if (Start < 0)
+            Start += VarLength;
+        Start = max(Start, 0);
+        Start = min(Start, VarLength);
+        if (*Src == _T(','))
         {
-            /* %VAR% - use as-is */
-            APPEND(Var, VarLength);
+            End = _tcstol(Src + 1, (PTSTR*)&Src, 0);
+            End += (End < 0) ? VarLength : Start;
+            End = max(End, Start);
+            End = min(End, VarLength);
         }
-        else if (*Src == _T('~'))
+        if (*Src++ != Delim)
+            goto bad_subst;
+        APPEND(&Var[Start], End - Start);
+    }
+    else
+    {
+        /* %VAR:old=new%  - Replace all occurrences of old with new.
+         * %VAR:*old=new% - Replace first occurrence only,
+         *                  and remove everything before it.
+         */
+        PCTSTR Old, New;
+        size_t OldLength, NewLength;
+        BOOL Star = FALSE;
+        size_t LastMatch = 0, i = 0;
+
+        if (*Src == _T('*'))
         {
-            /* %VAR:~[start][,length]% - substring
-             * Negative values are offsets from the end.
-             */
-            size_t Start = _tcstol(Src + 1, (PTSTR*)&Src, 0);
-            size_t End = VarLength;
-            if (Start < 0)
-                Start += VarLength;
-            Start = max(Start, 0);
-            Start = min(Start, VarLength);
-            if (*Src == _T(','))
-            {
-                End = _tcstol(Src + 1, (PTSTR*)&Src, 0);
-                End += (End < 0) ? VarLength : Start;
-                End = max(End, Start);
-                End = min(End, VarLength);
-            }
-            if (*Src++ != Delim)
-                goto bad_subst;
-            APPEND(&Var[Start], End - Start);
+            Star = TRUE;
+            Src++;
         }
-        else
-        {
-            /* %VAR:old=new%  - Replace all occurrences of old with new.
-             * %VAR:*old=new% - Replace first occurrence only,
-             *                  and remove everything before it.
-             */
-            PCTSTR Old, New;
-            size_t OldLength, NewLength;
-            BOOL Star = FALSE;
-            size_t LastMatch = 0, i = 0;
-
-            if (*Src == _T('*'))
-            {
-                Star = TRUE;
-                Src++;
-            }
 
-            /* The string to replace may contain the delimiter */
-            Src = _tcschr(Old = Src, _T('='));
-            if (Src == NULL)
-                goto bad_subst;
-            OldLength = Src++ - Old;
-            if (OldLength == 0)
-                goto bad_subst;
+        /* The string to replace may contain the delimiter */
+        Src = _tcschr(Old = Src, _T('='));
+        if (Src == NULL)
+            goto bad_subst;
+        OldLength = Src++ - Old;
+        if (OldLength == 0)
+            goto bad_subst;
 
-            Src = _tcschr(New = Src, Delim);
-            if (Src == NULL)
-                goto bad_subst;
-            NewLength = Src++ - New;
+        Src = _tcschr(New = Src, Delim);
+        if (Src == NULL)
+            goto bad_subst;
+        NewLength = Src++ - New;
 
-            while (i < VarLength)
+        while (i < VarLength)
+        {
+            if (_tcsnicmp(&Var[i], Old, OldLength) == 0)
             {
-                if (_tcsnicmp(&Var[i], Old, OldLength) == 0)
-                {
-                    if (!Star)
-                        APPEND(&Var[LastMatch], i - LastMatch);
-                    APPEND(New, NewLength);
-                    i += OldLength;
-                    LastMatch = i;
-                    if (Star)
-                        break;
-                    continue;
-                }
-                i++;
+                if (!Star)
+                    APPEND(&Var[LastMatch], i - LastMatch);
+                APPEND(New, NewLength);
+                i += OldLength;
+                LastMatch = i;
+                if (Star)
+                    break;
+                continue;
             }
-            APPEND(&Var[LastMatch], VarLength - LastMatch);
+            i++;
         }
-
-        goto success;
-
-    bad_subst:
-        Src = SubstStart;
-        /* Only if no batch context active do we echo the delimiter */
-        if (!bc)
-            APPEND1(Delim);
+        APPEND(&Var[LastMatch], VarLength - LastMatch);
     }
 
 success:
@@ -1501,6 +1491,13 @@ success:
     *DestIncLen = (Dest - End);
     return TRUE;
 
+bad_subst:
+    Src = SubstStart;
+    /* Only if no batch context active do we echo the delimiter */
+    if (!bc)
+        APPEND1(Delim);
+    goto success;
+
 too_long:
     ConOutResPrintf(STRING_ALIAS_ERROR);
     nErrorLevel = 9023;