Evaluate command: tdf#109338

Adds evaluate command.
It's visible from UI as a bracket.
Example: evaluate { {1} over {%sigma sqrt{2%pi} }func e^-{{(x-%mu)^2} over {2%sigma^2}} } from { -infinity } to { +infinity } = 0

In order to make the mathml part, several changes had to be mad:
- Allow mathml to correctly identify the math token for opperators
- Allow mathml to correctly identify the math token for fences
- Since improvements where made on token recognision, visitors to string can now be lighter ( removing long long switch )
- Improving the import / export to mathm
- LO says it mathml 2, but actually is something between 2 and 3
- Allowing mfenced ( mathml 2.0 ) to stayl 3 adding the missing data ( prefix and postfix )
- Be able to know if we are opening or closing brackets
- lrline and lrdline commands hidden on UI.
- They are they own open close
- If prefix and postfix are missing meaning of the expression may change, however that's the user problem.
- The problem resides in the fact that MS_VERTLINE is uses for lline and rline.
- The problem resides in the fact that MS_DVERTLINE is uses for ldline and rdline.
- Changing frac priority from 0 to 5, if not { frac 1 2 frac 1 2 } fails ( found while testing )
- The mathml testing was made with highter standars than qa tests, however there are no guarantees.
- Added xml tokens needed for math
- Added starmathdatabase. Will grow in the future.
The point is avoiding long lists and swtches inside code.

Added it command for hidden or implicit product ( like ⁢ in mathml ). Oppens path for tdf#66200. Note that about this issue there is only one line on the parser. The mathml implementation will be made later when LO will allow chars with &charname;.

Change-Id: If24b40c2420d39498693944f13a02985f997dd23
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/105267
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

1 files changed, 4 insertions, 0 deletions

diff --git a/starmath/inc/strings.hrc b/starmath/inc/strings.hrc
index 09b2b394c619..fb9fecc8e4b5 100644
--- a/starmath/inc/strings.hrc
+++ b/starmath/inc/strings.hrc
@@ -229,6 +229,10 @@
 #define RID_XEVALUATEDATY_HELP              NC_("RID_XEVALUATEDATY_HELP", "Evaluated At" )
 #define RID_XOVERBRACEY_HELP                NC_("RID_XOVERBRACEY_HELP", "Braces Top (Scalable)" )
 #define RID_XUNDERBRACEY_HELP               NC_("RID_XUNDERBRACEY_HELP", "Braces Bottom (Scalable)" )
+#define RID_EVALUATEX_HELP                  NC_("RID_EVALUATEX_HELP", "Evaluate" )
+#define RID_EVALUATE_FROMX_HELP             NC_("RID_EVALUATE_FROMX_HELP", "Evaluate Subscript Bottom" )
+#define RID_EVALUATE_TOX_HELP               NC_("RID_EVALUATE_TOX_HELP", "Evaluate Superscript Top" )
+#define RID_EVALUATE_FROMTOX_HELP           NC_("RID_EVALUATE_FROMTOX_HELP", "Evaluate Sup/Sub script" )
 #define RID_RSUBX_HELP                      NC_("RID_RSUBX_HELP", "Subscript Right" )
 #define RID_RSUPX_HELP                      NC_("RID_RSUPX_HELP", "Power" )
 #define RID_LSUBX_HELP                      NC_("RID_LSUBX_HELP", "Subscript Left" )