Hi, this is a MetaPost limitation; s41p actually means s[41].p in MetaPost, not a simple variable name. M. On Sun, Jan 14, 2024, 20:54 Rodrigo Severo via Therion <therion@speleo.sk> wrote:

Hi,

Just trying to set a "line u:s41p" symbol on latest Therion and getting strange metapost errors:

! Missing `=' has been inserted. <to be read again> 51 l.6846 let l_u_s51 p = l_u; You should have said `let symbol = something'. But don't worry; I'll pretend that an equals sign was present. The next token I read will be `something'.

! Missing symbolic token inserted. <inserted text> INACCESSIBLE l.6846 let l_u_s51 p = l_u; Sorry: You can't redefine a number, string, or expr. I've inserted an inaccessible symbol so that your definition will be completed without mixing me up too badly.

! Extra tokens will be flushed. <to be read again> p l.6846 let l_u_s51p = l_u; I've just read as much of that statement as I could fathom, so a semicolon should have been next. It's very puzzling... but I'll try to get myself back together, by ignoring everything up to the next `;'. Please insert a semicolon now in front of anything that you don't want me to delete. (See Chapter 27 of The METAFONTbook for an example.)

! Missing `=' has been inserted. <to be read again> 51 l.6847 def l_u_s51 p_legend = l_u_s51p(((-.3,0.5) .. (.3,.3) .. (.7,.7) .. (1... The next thing in this `def' should have been `=', because I've already looked at the definition heading. But don't worry; I'll pretend that an equals sign was present. Everything from here to `enddef' will be the replacement text of this macro.

I believe that subtypes aren´t supporting all chars allowed by <keyword> as defined in THBook page 13 (Data types).

Is it a bug or am I misreading something?

Regards,

Rodrigo

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