At the meeting, Xi and Ma, as "leaders of the two sides of the Strait," will address each other as "Mr."
The Singapore meeting is in line with the one-China principle, Zhang said.
Although the Xi-Ma meeting has been met with much praise, supporters of "Taiwan independence" are not so impressed.
On Wednesday when the meeting was announced, supporters of "Taiwan independence" rallied in front of the island's legislature and Ma's office, protesting the decision and demanding his resignation.
A number of opposition politicians also criticized Ma for not notifying the legislature. Some accused him of trying to secure support for the Kuomingtang (KMT) in the 2016 leadership election.
Eric Chu, KMT chair, is running for the election. He released a statement saying that previous confrontation across the Strait had cost Taiwan dearly, and the peace of the last few years had benefited the island.
Saturday's meeting will be a game changer, but certain political fractions insist on opposing it, leaving questions over where they stand on cross-Strait policies, Chu said.
Yok Mu-ming, chair of Taiwan's New Party, wrote in an article published Thursday that the decision to meet Xi was the right call.
"China Times," argued in its Thursday report that "Taiwan independence" supporters would loose out if they overreact to the meeting.
Interestingly, leaders of the major opposition DPP were quite ambiguous in their response.
Although accusing Ma of "narrowing Taiwan's future for the sake of personal political legacy," a day earlier, DPP chair Tsai Ing-wen, who is also running for the 2016 election, told media Thursday that the wider society was not against the meeting, and she cannot rule out the possibility of meeting Xi if elected.
DPP secretary-general Joseph Wu also told media on Thursday that DPP will not stop the Xi-Ma meeting or oppose the possible regular meetings of cross-Strait leaders.
