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Feature/cleanups1 (#114)

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* Intellisense cleanups.

* Additional intellisense cleanups for default list

* Add missing Monitor.Exit in completion resolve

* A couple more cleanups.

* Bug fixes for auto-complete.

* Add comment regarding conditional logic
This commit is contained in:
Karl Burtram
2016-10-24 18:11:49 +00:00
committed by GitHub
parent 2a688cb87f
commit 1d7e6e353f
5 changed files with 268 additions and 210 deletions
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116
src/Microsoft.SqlTools.ServiceLayer/Utility/TextUtilities.cs
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@@ -6,7 +6,34 @@
namespace Microsoft.SqlTools.ServiceLayer.Utility
{
public static class TextUtilities
{
{
/// <summary>
/// Find the position of the cursor in the SQL script content buffer and return previous new line position
/// </summary>
/// <param name="sql"></param>
/// <param name="startRow"></param>
/// <param name="startColumn"></param>
/// <param name="prevNewLine"></param>
public static int PositionOfCursor(string sql, int startRow, int startColumn, out int prevNewLine)
{
prevNewLine = 0;
if (string.IsNullOrWhiteSpace(sql))
{
return 1;
}
for (int i = 0; i < startRow; ++i)
{
while (prevNewLine < sql.Length && sql[prevNewLine] != '\n')
{
++prevNewLine;
}
++prevNewLine;
}
return startColumn + prevNewLine;
}
/// <summary>
/// Find the position of the previous delimeter for autocomplete token replacement.
/// SQL Parser may have similar functionality in which case we'll delete this method.
@@ -14,49 +41,70 @@ namespace Microsoft.SqlTools.ServiceLayer.Utility
/// <param name="sql"></param>
/// <param name="startRow"></param>
/// <param name="startColumn"></param>
/// <returns></returns>
/// <param name="tokenText"></param>
public static int PositionOfPrevDelimeter(string sql, int startRow, int startColumn)
{
if (string.IsNullOrWhiteSpace(sql))
{
return 1;
}
{
int prevNewLine;
int delimeterPos = PositionOfCursor(sql, startRow, startColumn, out prevNewLine);
int prevLineColumns = 0;
for (int i = 0; i < startRow; ++i)
if (delimeterPos - 1 < sql.Length)
{
while (sql[prevLineColumns] != '\n' && prevLineColumns < sql.Length)
while (--delimeterPos >= prevNewLine)
{
++prevLineColumns;
}
++prevLineColumns;
}
startColumn += prevLineColumns;
if (startColumn - 1 < sql.Length)
{
while (--startColumn >= prevLineColumns)
{
if (sql[startColumn] == ' '
|| sql[startColumn] == '\t'
|| sql[startColumn] == '\n'
|| sql[startColumn] == '.'
|| sql[startColumn] == '+'
|| sql[startColumn] == '-'
|| sql[startColumn] == '*'
|| sql[startColumn] == '>'
|| sql[startColumn] == '<'
|| sql[startColumn] == '='
|| sql[startColumn] == '/'
|| sql[startColumn] == '%')
if (IsCharacterDelimeter(sql[delimeterPos]))
{
break;
}
}
delimeterPos = delimeterPos + 1 - prevNewLine;
}
return startColumn + 1 - prevLineColumns;
return delimeterPos;
}
/// <summary>
/// Find the position of the next delimeter for autocomplete token replacement.
/// </summary>
/// <param name="sql"></param>
/// <param name="startRow"></param>
/// <param name="startColumn"></param>
public static int PositionOfNextDelimeter(string sql, int startRow, int startColumn)
{
int prevNewLine;
int delimeterPos = PositionOfCursor(sql, startRow, startColumn, out prevNewLine);
while (delimeterPos < sql.Length)
{
if (IsCharacterDelimeter(sql[delimeterPos]))
{
break;
}
++delimeterPos;
}
return delimeterPos - prevNewLine;
}
/// <summary>
/// Determine if the character is a SQL token delimiter
/// </summary>
/// <param name="ch"></param>
private static bool IsCharacterDelimeter(char ch)
{
return ch == ' '
|| ch == '\t'
|| ch == '\n'
|| ch == '.'
|| ch == '+'
|| ch == '-'
|| ch == '*'
|| ch == '>'
|| ch == '<'
|| ch == '='
|| ch == '/'
|| ch == '%'
|| ch == ',';
}
}
}